Architectural SSL - October 2013 by Buildings & Construction Group

AT THE FRONT No longer just a replacement for neon, SSL has become a major player as a medium for designers to interpret ﬁne and functional art.

Aiming for the fences may be something to keep up one’s sleeve, as singles and doubles, so to speak, may deliver better results. Kevin Willmorth offers ﬁve hitting tips to succeed today.

SSL BUZZ DOE’s Latest CALiPER report notes outdoor are LED lighting is making strides, especially in delivering better CRI and CCT.

SSL PROJECTS LED helps MIT restore its historic Barker Engineering Library, offering the perfect source to complement its focal point oculus.

NUMBER 30 • OCT 2013 www.architecturalssl.com

.319/.391/.534

SSL Buzz: LEDs Part of Denver’s Redevelopment SSL Proﬁle: Hugo Boss, New York and Los Angeles ARCHITECTURAL SSL • 519 BRIARCLIFF ROAD, BOLINGBROOK, IL 60440

ARCHITECTURAL SSL • Chronicling the Advancement of LEDs in the Built Environment

WAIT FOR YOUR PITCH. Soon, the number of applications that will allow SSL to hit home runs will grow, especially as OLED matures. This, however, makes it no easier to decide now when to swing at LED pitches.

Special Report: The State of Replacement Products

Circle 01

Circle 02

OCT. 13

BUZZ

PERSPECTIVES

35 Project Proﬁle: MIT’s Barker Enginneering Library gets an LED refurbishment.

07 CALiPER Update:

05 LED Insights

Outdoor area lights see marked improvements.

39 Project Proﬁle: Hugo Boss adds LED to the mix of its retail offerings.

10 Light Rail & LED

Who doesn’t like hybrids? Why an integrated lighting approach makes sense. By Jim Crockett

Denver’s Union Station renewal begins with SSL.

64 SSL Observed

12 French Lace Designers in Marseille marry LED and sculpture to magniﬁcent results.

02 • 10.13 • ARCHITECTURAL SSL

For those magificent men in their flying machines, design flaws meant swift, and often catastrophic, failiure. Today, however, poor design is being replicated on large scale. By Kevin Willmorth

“Investment in evolving a more sophisticated approach to decision making is the surest way of capturing the highest value from the widest range of choices available to lighting in its history.”

www.architecturalssl.com

FEATURES

DESIGN & PRODUCTS

16 Market Setting Feature: Swinging for the Fences

54 White Pages Dimming and ﬂicker issues.

Since working its way into the mainstream line up, SSL’s “batting average” has been impressive. That said, wicked curve balls still keep it from dominating its conventional predecessors. by Kevin Willmorth

22 At The Front: The Art of SSL Once limited as a neon replacement for ﬂexibility and color, SSL has become a major player as an interpreter of ﬁne and functional art, allowing LEDs to become a palette for light artists, and lighting designers worldwide.

by Vilma Barr

58 Advances Track lights, pendants, task lighting, accent lights,garage low-bay; new modules and arrays.

Architectural SSL, Vol. 7, No. 5 (ISSN# 1941-8388) is published ﬁve times per year by Construction Business Media. Publication Office: Construction Business Media, 579 First Bank Drive, Suite 220, Palatine, IL 60067; 847 359 6493; www.architecturalssl.com. (Copyright © 2013 by Construction Business Media) POSTMASTER: Send address changes to Architectural SSL Magazine, 519 East Briarcliff Road, Bolingbrook, IL 60440.

28 Featured Project: Birmingham Library In England, designers from Happold Lighting, in a subtle, yet stylistic manner, illuminate Birmingham’s new library—an almost sculptural structure that brings the housing of books to a new age. by Vilma Barr

www.architecturalssl.com

ARCHITECTURAL SSL • 10.13 • 03

+IX XLI W]WXIQ PIZIP TIVJSVQERGI ]SY RIIH ;MXL 4LMPMTW 0YQMPIHW 09<)32 8 0)(W ]SY RS PSRKIV LEZI XS GSQTVSQMWI SR XLI JIEXYVIW ]SY RIIH XS VIEGL ]SYV HIWMVIH W]WXIQ PIZIP TIVJSVQERGI 09<)32 8 LMKL TS[IV GSQTEGX IQMXXIVW KMZI ]SY XLI QE\MQYQ IJJMGEG] PS[ XLIVQEP VIWMWXERGI ERH XLI LMKL STXMGEP GSRXVSP ]SY RIIH JSV XMKLX FIEQ GSRXVSP MR HMVIGXMSREP ERH LMKL PYQIR ETTPMGEXMSRW 09<)32 8´W *VIIHSQ JVSQ &MRRMRK81 ERH PIEHMRK TIVJSVQERGI EPPS[ W]WXIQ STXMQM^EXMSR F] FPIRHMRK XLI TIVJIGX GSQFMREXMSR SJ LMKLIWX IJJMGEG] ERH PS[ W]WXIQ GSWX 09<)32 8´W XMKLX 'SVVIPEXIH 'SPSV 8IQTIVEXYVI GSRXVSP IRWYVIW GSRWMWXIRG] MR W]WXIQ GSPSV TSMRX ERH EVI XIWXIH EX VIEP [SVPH STIVEXMRK XIQTIVEXYVIW XS IRWYVI VIPMEFPI TIVJSVQERGI ;MXL 09<)32 8 0)(W ]SY GER FI GSRJMHIRX ]SY [MPP KIX XLI W]WXIQ PIZIP TIVJSVQERGI ]SY RIIH [[[ TLMPMTWPYQMPIHW GSQ 09<)328

400 09<8

Circle 02

Coμμ§∑T±R∞

NUMBER 30 • OCTOBER 2013 www.architecturalssl.com

Gary Redmond

Managing Partner Director Publishing Operations gary@architecturalssl.com

Tim Shea

Managing Partner Director Business Development tim@architecturalssl.com

Dave Pape

EDITORIAL Jim Crockett 847 359 6493 Kevin Willmorth

Megan Mazzocco 847 359 6493

Vice President Director, Art & Production dave@architecturalssl.com

Editorial Director jimc@architecturalssl.com Editor kevin@architecturalssl.com Associate Editor megan@architecturalssl.com

CONTRIBUTING EDITORS Vilma Barr vilma@architecturalssl.com Barbara Horwitz-Bennett barbara@architecturalssl.com Ellen Lampert-Greaux ellen@architecturalssl.com Chuck Ross chuck@architecturalssl.com

Mix Up the Line Up no need for 100% LED, the client insisted. For

With the World Series approaching, it’s hard not to think about baseball, especially with “42” on the DVD circuit. The latter has me thinking about SSL integration issues.

Copy Editor

a Chinese fixture, which made this particular designer nervous. Without knowing much about

This case brings up another issue, and that’s

Willmorth chose a baseball analogy to assess the

the whole question of whether fixture innovation

state of SSL. As I was reading the story, I couldn’t

is being stifled because of UL approval rating

help but think of Dodgers rookie Yasiel Puig. Like

requirements. The latter are there for life safety,

SSL, the Cuban native is intriguing; he has a

but if designers are turning to non-approved

tremendous bat, but like SSL, has some liabilities,

products to solve such problems, it’s defeating

most notably his defensive skills.

the intent of the provisions. Somewhere in

baseball story about another Dodger rookie—

between, my lighting designer friend suggests, might lay the answer. Somewhere in between, I’ll add, is where SSL

in the film “42.” Without trivializing Robinson’s

integration should fall. There’s no mandate that

struggles in breaking the race barrier, I couldn’t

it’s all or nothing. A well-conceived and integrated

help but think about integration issues SSL faces

lighting plan, one that’s a mix of LED, controls,

Associate Art Director lauren@architecturalssl.com

today in getting into the built environment.

daylighting and fluorescent sources, probably

Graphic Designer alex@architecturalssl.com

in a session presented by a respected lighting

DESIGN & PRODUCTION Dave Pape Art Director dave@architecturalssl.com

Alex Mastera

requirements. As a result, the team turned to

performance—long or short term. In this month’s Market Setting Feature, Kevin

Jackie Robinson—which was re-told this spring

Lauren Lenkowski

American fixture that would meet the project’s

the product, his firm could not guarantee its

I also thought of SSL in context of another Jan Bottiglieri

what was desired, it turned out there was no

A few years back at a lighting conference, I sat

will deliver the strongest line up. Avoiding LED, however, is no answer, and

designer who pretty much poo-pooed LED. That,

California may prove a testing ground. Very soon,

of course, was his right. But in the Q+A that

buildings there, by code, will require dimmable

followed, the designer admitted he actually had

ballasts for daylighting. This is a complex and

very little experience with it. I have no problems

costly solution when dealing with fluorescent

with people being critical of the technology, but

sources. It almost begs the question, why not

I want to see that they’ve at least walked a mile

upgrade to LED? But that’s not necessarily

in those shoes. Perhaps some of this attitude

a home run either. There’s currently a study

has subsided among lighting designers, but I still

underway examining LED dimming and power

David Haggett Ted Rzempoluch 847 934 9123 609 361 1733 davidh@architecturalssl.com ted@architecturalssl.com

sense some resentment beneath the surface.

quality, namely negative power factor issues

Some of it, I believe, is generated from demand

that might result from LED dimming efforts.

Jim Führer 503 679 5409 jimf@architecturalssl.com

consultants go “all-in”—an equally damaging

question LED has potential, and now that many

extreme. Case in point, I re-connected with one

significant projects are in place, they can be stud-

of the speakers from our inaugural ArchLED

ied, and problems corrected. Jackie Robinson,

conference to see how he gauged the state of

after all, started out as a short stop, but went into

lighting. As he felt about a half a decade ago in

the Hall of Fame as a second baseman.•

ADVERTISING SALES Gary Redmond 847 359 6493 gary@architecturalssl.com

Tim Shea 847 359 6493 tim@architecturalssl.com

Trey Higgens 847 577 8980 trey@architecturalssl.com

Jim Oestmann 847 838 0500 jim@architecturalssl.com

Bob Fox 203 356 9694 bob@architecturalssl.com

SUBSCRIPTION INQUIRIES There is no charge for subscriptions to qualified requestors in the U.S. All other annual subscriptions will be charged $39 for standard delivery or $55 for air mail delivery. For subscriptions, inquiries or address changes, call 630 739 0900 ext. 201.

by clients, caught up in the LED hype, that their

It’s frustrating, but there’s hope. There’s no

expressing a “love/hate” relationship with LED, he still has mixed feelings about its integration into the built environment. While absolutely a proponent for energy efficiency, this lighting

A Publication of Construction Business Media

expert relayed a story of a recent net-zero project his firm completed for a university that

Member:

wasn’t such a wonderful an experience. Despite

www.architecturalssl.com

Jim Crockett, editorial director

ARCHITECTURAL SSL • 10.13 • 05

Circle 03

Snapshot: Outdoor Area Lighting OU OUTDOOR O UTD UT TDO TDO DOO OOR OR AR A AREA REA RE EA LED L LE ED LIG ED L LIGHTING IG GH GH HT TING TIN NG MAKES M MA AKES AK KES ES STRIDES STR ST TRID RID IDE DES ES IN IN BETTER B BET BE ET ETT TTE TTE TER ER CR C CRI RI + CCT RI CCT CT

Outdoor Area Lighting Efficacy Trend Comparison

Mean Luminous Efficacy (lm/W)

120

100

The U.S. Dept. of Energy’s latest CALiPER report provides a snapshot of steadily improving

performance among three categories of outdoor area lighting luminaires. Competition with 40

incumbent technologies is ﬁerce in this market, Canopy

because leading high-pressure sodium (HPS)

Area & Roadway

and metal halide ﬁxtures already are relatively

Parking Garage

energy efﬁcient. However, the best-designed LED

All Products

products offer longer life, reduced maintenance 0 Q3 Q4 Q1 2009 |

2010

Q3 2011

Q2 2012

Efficacy (lm/W)

Q1 |

Q2 2013

Source: DOE CALiPER results, July 2013

and higher color quality and better controllability— factors that can tip buyers in their favor. DOE’s Snapshot reports draw on products registered with the LED Lighting Facts database as of July 1, 2013. Incorporating luminaires in

ABOVE: On average, all three outdoor area categories offer substantially higher efficacy than for all products actively listed in the LED Lighting Facts database. This is likely necessary because outdoor LED area luminaires must compete with HID rather than incandescent or halogen luminaires.

three application categories—outdoor/roadway, parking garage and canopy (e.g., gas station fuelpump areas)—it reﬂects a fast-growing market, thanks to advantages gained through easier use of sensors and controls, potentially better optical control and preferable color quality. However, the report advises, performance varies across all the categories, so speciﬁers still need to do some homework when matching products to applications.

Outdoor Area Lighting Color Quality and Temperature

Highlights from the report include the

100%

observation that luminous efﬁcacy is continuing 80%

80%

Canopy

to improve, with a current mean efﬁcacy rating

Area & Roadway

of 74 lumens/watt (lm/W), and that 70% of cur-

Parking Garage All Products

60%

40%

20%

rently listed area and roadway luminaires meet both efﬁcacy and output requirements of the DesignLights Consortium Qualiﬁed Products List, as do 65% of parking garage luminaires and 68% of listed canopy products. The highest ratings in all three categories, surpassing 100 lm/W, are all substantially higher than any of

those from conventional HPS, metal halide and

0% ≤69

70–79

80–89

Color Rendering Index (CRI)

90–100

≤4000

4500

5000

5700

≥6500

Correlated Color Temperature (CCT)

induction offerings. Nominal correlated color temperatures (CCTs) for the target LED products were most commonly listed at either 4000K or 5000K, with area and

ABOVE: More than 30% of the products in each category had a CRI less than 70, but still substantially better than HPS. As far as CCT, the most common range was between 4000 and 5000K, although parking garage ﬁxtures tended to be closer to 5000K on average, while area luminaires had median CCT of about 4600. Z

www.architecturalssl.com

CONTINUED ON PAGE 08

ARCHITECTURAL SSL • 10.13 • 07

The New Linear

UnderLine

SERIES Y

High Efficiency LED Ultra Low Profile

CONTINUED C ONTIN NUED FR FROM ROM P PAGE AGE 07

rroadway oadway way ay fixtu x xt xtures tur ure res s run rrunning unn unni nin ng at at the tth he lower low lo owe wer err e end nd o off tthe he m median edia ian an n sp spectrum. pect ec ctr tru um. m. Additionally, A Add ddittio ddi ion ona nal ally ly, y, tthe he hig h highest ighestt p percentage erc er rce cen ent nta age off c o currently urre ren ent ntl tly y act a active ctiv ive ve L LE LED ED pro products p roduct ucts had h ad a col color c co olo or rrendering enderi rin ing ng g in iindex ind nde dex ex x (CR ((C (CRI) CRI RI)) in n the the h 70s 70s, 7 70 0s, s, c comparable ompa mpar para rab abl ble e tto om many any m metal eta et tal al halide h ali lid ide de lla lamps amps mps ps in n si sim similar im mil ila ar a applications. ppli lic cati tio ons. Across A cro ros oss ss s all a all tthree hre ree ee ec categories, ate atteg ego gor orie ies es, s, researchers re esearch che her ers s ffound ound LED LED alternatives alter alt ern nativ nat a iv ves are a re m most ostt av available ava vai aila ilab abl ble e iin n llo lower-wattage ower wer-w e -w watta wat tag age ge e applications, a ppli lic cat ati tio ons, w with ith it th hd data at ata ta a in ind indicating ndi dic cati tin ng llimited im mit ite ted d ava av a availability vai aila lab abi bili lity ty yo off L LED ED lum lluminaires lu um mina in nai aire res es comparable c ompa mpar para rab abl ble e tto o4 400W 00W HID HID a are ar area rea ea a an a and nd roadway roa ro oad adw dw way fi fixt xtu xtures. x ures. H However, owev wever, ver, p pr pro products rod odu duc uct cts s exceeding exc ex xce cee eding in ng g tthe he e effi ffi ficac cacy ca acy cy yo off co com comparable om mp mpa par ara able conventional c onventi tio onal lu luminaires umin naires a nai are re a available vaillab abl ble e among a mong mon ong g all alll p product roduct typ ty types. ype pes es. s. And And nd th the he e m ajor jo ori rity ty yo off the th he eL Lighting igh ig ght hti tin ng Fac F Facts a actts majority d atabase eL LED ED products prod pro pr odu duc uct cts sc could cou ould uld b be e database con co ons nsi sid dered e equivalent quiv iva val ale ent o orr bet b better e terr th ett than tha han an n considered oth ot her alte her a alternatives lter ern rna nat ativ ive ves es s in in bo both bot both th he effi ffi fica cac cacy c acy y other a nd llig lighting igh ght hti tin ng qua quality. q ual ualit ity y. and T hat b being eing in ng gs said, aid, id d, tthe he DOE DOE OE n notes otes That

EXTERIOR LIGHTING: WASHINGTON MONUMENT

Monumental Lighting

tthat hat o outdoor utdoor a area rea lluminaires uminair ire es a are re o fte ftten en n co con c considered ons nsi sid dere erred ed dau utilitarian tili ti ilit ita aria rian pro p product, r duct, rod uct, often

The Washington

meaning mean mea e ning nin ng g ﬁn nances, ances, rrather ath the her err tha tthan th han an n lig llighting igh ght hti tin ng

National Monument

quality qua qu ual alit ity ty y or or a aesthetics, est es sth the hettic ics cs,, o often fte ftten n gu g gui guide uid ide de

has been shrouded

purchase p urchase d decisions. ecis isi sio ons. But Bu utt the th he e rreport’s epo ep por ort rt’s s

with scaffolding since

write writ terrs urg u urge rge spe specifi s p pec cifi fiers e errs s to to tak ttake ta ake ke e tim ti ttime me me writers

Actual Size Profile

t Over 250 Lumens / Foot t Over 70 Lumens / Watt t Commercial, Plug N’ Play

a 2011 earthquake

tto o llo look ook a att m more ore tthan han s simple im mple mpl p e wat w wattage atta att age

caused signiﬁcant damage to one of the leading

a nd lig llighting igh ght hti tin ng o output utput ﬁgures utp gures in n making maki mak akin ng and

tourist draws in the nation’s capital. While the

the th hei eirr dec d decisions—for ecis isi sio ons—forr e example, xampl mple p e, an an their

structure will remain closed until next spring, a

LED LED ED’s s gre g greater reaterr c control on ntr tro rol ol in n how how lig li light ght iis s LED’s

new lighting installation has given visitors a new

d isttrib is bu ute ted or or it its ts a available vail ila able c control ontro trol distributed

reason to keep the monument on their must-see

sys sy yst ste ems ms cou co could oul uld d del d deliver eliv e ive ver er ene e energy ner nerg gy sav s savings avin avin ngs s systems

list. More than 480 TRACE LITE ﬁxtures from the

beyo bey eyon ond nd db basic asi sic c llm/W m/W rratings. m/W ati tin ngs. D ngs DOE OE beyond

Barron Lighting Group now shine from behind a

a lso ls so o su suggests ugges est sts ts specifi spec spe pecifi ifi fiers ers er s con co c consider ons nsi sid der also

decorative blue-gray scrim, wrapping the monu-

mock-ups mock moc o k-u k-u ups a and nd pilo pilot pi p lot ott pr p pro projects roj oje ects sb before efo ef for ore e

ment in a top-to-bottom luminescent glow that

undertaking und un nde der ert rta akin ing ng ga any ny sub s substantial u ubs bsttantia tial L LED ED

seems to emanate from within the structure.•

installation ins in nst sta tall alla lat atio ion on np projects. roje ojects.•

877- SSL- GREEN

ABOVE: ”This is part of our heritage and it’s important to preserve that for future generations,” says Alan Tracy, president of Barron Lighting.

download brochure at

SolidStateLuminaires .com Circle 04

www.architecturalssl.com

EXTERIOR LIGHTING: SANTA MONICA PIER

High-Tech, Fun Lighting The Santa Monica Pier holds the title as the No. 10 most Instagrammed landmark in the world, and now all those photographers will have a much easier time snapping their digital photos at night, thanks to a recently completed comprehensive lighting upgrade. Where the burned-out former ﬂuorescent ﬁxtures once left unsightly gaps along the pier’s boardwalk and carousel building, new LED lamps promise years of steady service—and they’re already cutting energy use by 30%. Photo credits: Ian Livingston

A number of new ﬁxtures and lamps from LEDtronics make up the new lighting design, including post-top lights, post-top pendants and S14- and A19-style bulbs. Adding to their appeal, “the ﬁxtures really bring out the colors on the building,” says Jim Harris, deputy director of the Santa Monica Pier Restoration Corp.•

experience the difference For Metal Coaters, coating metal is our way of life. We take steps to ensure a final product that meets the highest standards. But, we also know that it takes more than an attractive color. It’s the unparalleled attention to detail,

“WITH THE NEW LED LAMPS IN, MAINTENANCE IS MINIMAL AND WE HAVE REDUCED ENERGY BY 30%.”

customer service that you can depend on,

—MATT HENNIGAN, CITY OF SANTA MONICA

right product when you expect it. With Metal

and confidence that comes with getting the

Coaters, Color Counts but More Matters:

TRACK LIGHTING: VIRGINIA MOCA

But Is It Art?

more flexibility, more reliability, more service, and more quality. We work hard to uphold our brand promise of being the only coil coating company “Where More Than Color Matters”.

A full lighting system upgrade at the Virginia Museum of Contemporary Art in Virginia Beach, Va., is incorporating more than 450

Experience the Me t al C o a t er s di f f er enc e a t www.metalcoaters.com/ssl.

new LED luminaires from Journée Lighting in galleries throughout the facility. Designers selected the company’s Zinnia family of track ﬁxtures in a competition that included a number of other lighting brands. Shown here, the Zinnia 1000i can be installed with 12-, 24- or 36-in. modular stem drops.•

Rancho Cucamonga, CA 800-841-4565

Marietta, GA 800-669-0624

Jackson, MS 800-858-1203

LEFT: Besides a 2700K CCT, the ﬁxtures offer an assortment of beam angles and drop lengths to meet the ever-changing needs of MOCA’s permanent and temporary art exhibits.

www.architecturalssl.com

Middletown, OH 877-669-3602

Circle 05

The New Linear

CoveLine

SERIES

Powerful, Low Profile Cove LLuminaire C i i

PUBLIC TRANSPORTATION: DENVER LIGHT RAIL PLAZA

All Aboard! Light Rail Plaza is the first completed phase of a $4.7 billion redevelopment plan for Denver’s Union Station. It features nine teardropshaped bench planters located around the plaza that appear to float above the pavement at night, thanks to outline-defining illumination from iLight. Lighting designer Dane Sanders, a principal with Boulder-Colo. based Clanton & Assocs., specified the company’s

t Specification grade t Even linear light distribution t Coves, wall washes, indirect t 2700K, 3000K & 4000K t Several optical solutions t Up to 100 lumens / watt

Plexineon White 1X Series linear LED luminaires for the job. The bendable strip ﬁxtures were installed beneath the bench’s seat-wall overhang using mounting clips that keep the luminaires out of sight. Additionally, ﬂush-to-grade powersupply boxes keep power connections unseen

“WE NEEDED A DURABLE PRODUCT THAT WOULD REINFORCE BOTH SAFETY AND SECURITY.” —DANE SANDERS

and out of harm’s way.•

877- SSL- GREEN

ABOVE: Lighting Designer Dane Sanders with Clanton Assocs., had worked with Plexineon before and knew it could be bent to follow the curved form of much of the plaza. More importantly, the product also demonstrated great light output, according to Sanders, and excellent color consistency.

download brochure at

SolidStateLuminaires .com Circle 06

www.architecturalssl.com

*Actual Size

Meet the New MB Mini

Smaller. More compact. Just as powerful. The new MB Mini LED luminaire features an innovative, compact design and utilizes the same precision optics found in the award-winning MB Series. Delivering a crisp, FOHDQ FRQVLVWHQW EHDP ZLWK PLQLPDO Č´HOG DQJOH WKH QHZ 0% 0LQL LV D SRZHUIXO addition to the MB-LED product line. Č? Č? Č? Č? Č?

900 (12W) or 1200 (18W) Delivered Lumens 2700K, 3000K, 3500K, 4000K CCT / 82 and 92 CRI 3-Step MacAdam Ellipse Tolerance ELV Dimming 10-Year Product Warranty

Intense Lighting, LLC | Anaheim, CA Visit us at www.intenselighting.com

Circle 07

PUBLIC ART: MARSEILLE MUSEUM OF THE EUROPEAN AND MEDITERRANEAN CIVILIZATIONS

Evening Lace Marseille’s Museum of the European and Mediterranean Civilizations— known as MuCEM—features an exterior envelope of lace-like concrete that has become a signature element of its city’s seafront, thanks to a lighting installation designed by Yann Kersalé. The installation was the winning entry in a public artwork competition, and incorporates LEC Lyon’s 4240-Havre spotlights mounted out of sight between the building’s glass curtain wall and the exterior concrete envelope.•

ABOVE: Compact and discreet, the 4240 Havre spotlights installed on the structure do not alter the ediﬁce during daytime—a condition of the architect.

Circle 08

www.architecturalssl.com

Product Innovation Award Winners (clockwise): W-130 SKYY Sconce, W-140 Sliver Sconce, W-120 Planar Stretch Sconce, P-130 SKYY Pendant.

LED lighting with dimensional appeal. Low-glare, diode-driven luminaires with precisely engineered performance optical components. And now, award winning too. All from a company with a 65-year history of lighting innovation. See more at digitalspeck.com.

ÂŠ 2013 Manning Lighting, Inc. | Sheboygan, Wis. USA

Circle 09

PUBLIC TRANS: STAMFORD, CONN., TRAIN STATION

Wireless All the Way

A buzz in LED architectural lighting is control via

from the lower roof ColorBlast installation to the

wireless DMX. A case in point is the Stamford,

control boxes on the upper roof so the system

Conn. train station, where a public-art project

could run from one controller in the lower power

uses SSL to add dynamic color to the façade.

room,” says Burnett.

“Team Light Wrangler,” a group of visual artists

and receiver, he says, did the trick. “We could

Environments, decided to use City Theatrical’s

only power 50 ft. max of LED neon at a time,

SHoW DMX Vero wireless DMX as a means to

hence we used about 40 RGB Neon Flex controllers,”

control 24 Philips ColorBlast ﬁxtures, which

explains Burnett, adding all the segments in one

actually illuminate 1400 ft. of LED Neon Flex

vertical or horizontal line have the same address,

that criss-cross the façade. “We had to get DMX

so each works as one.•

CONFIDENCE

STEP | IN-GRADE | UP & ACCENT | BOLLARDS & PATH LIGHTS

CRAFTSMANSHIP AND

The affordable and weatherproof transmitter

led by lighting designer Jamie Burnett of Luminous

DIMMABLE, 14-WATT DOWNLIGHTS ARE HELPING DELIVER A 50% TO 70% REDUCTION IN ENERGY COSTS FOR THE LIBRARY

PUBLIC BUILDINGS: FRANKLIN LIBRARY, MONTERREY, MEX.

Library Likes LED Requiring 700- to 750-lumen light levels to make it easy for its patrons to read and browse, library ofﬁcials also desired long-term energy savings.

Vista Architectural Lighting continues to build a reputation of excellence

The answer came in the form of a comprehensive LED solution from MaxLite. For general lighting,

on a trusted foundation. We’re committed to supporting your success with

the architect speciﬁed 90-watt 2x4 Edge Lit Flat

American made, expertly engineered ﬁxtures superbly crafted to your

Panels, as well as 60-watt 2x2 and 1x4 models. The

speciﬁcations. Visit our new website to learn how Vista is leading the way with superior service and lighting solutions that will exceed your expectations.

library’s wall and ceiling coves are illuminated with 200 dimmable Plug-and-Play LED Lightbars, which link together for continuous runs. The lightbars feature a diffuser that minimizes glare and delivers even light distribution while concealing the LEDs from view. Elsewhere, the library uses dimmable recessed downlights, 4-watt MR16s and 5-watt PAR20s. The LED system is expected to deliver more than 35,000 hours of maintenancefree operation.•

800-766-8478 | www.vistapro.com

Circle 10

www.architecturalssl.com

CREE IS LED LIGHTING

inviting LED Light. As the developer of the ﬁrst lighting-class LED, we’re not scrambling to adapt to change; we are the change— and we won’t stop until LED lighting is everywhere. That’s why Cree makes the industry’s best LED components for nearly every application, from directional to distributed. Cree makes light for living.

Visit cree.com/innovative and learn how our full portfolio of LED components and modules can lower your system cost. Circle 11

Since working its way into the mainstream lineup,

Other difﬁcult pitches to hit at this point include

Regardless of spin by LED proponents, SSL is

solid-state lighting’s “batting average” into virtually

a lack of product choices, questionable optical

not perfect for every lighting requirement. This

every area of lighting has been nothing short of

designs and color consistency. While there are many

leaves decision makers in an uncomfortable spot:

impressive. That said, wicked curve balls and sliders,

applications where SSL has already achieved

held on one side by familiarity and consistency,

so to speak, still keep it back from dominating its

a strong position, there are none in which it is

and the other by a desire to use an exciting new

conventional predecessors: Speciﬁcally, system

considered the only choice. Whether it eventually

technology. Thus choosing when to swing for the

costs remain a barrier, as does the concept of

consumes the entire market, or simply takes its

fences, when to go for a single, or when to wait for

whole ﬁxture replacement at end of service life.

place alongside other options is not fully known.

the next pitch, has never been more difﬁcult.

16 • 10.13 • ARCHITECTURAL SSL

www.architecturalssl.com

ARCHITECTURAL SSL • 10.13 • 17

Swing and a Miss There are a few areas where the choice between solid-state and other conventional sources is obvious. For example, LEDs do not function well in high-temperature environments, so their use in ovens, or spaces regularly exposed to high temperatures is limited. Solidstate electronics are also not well suited to installations where lighting equipment is subjected to high levels of electro-magnetic radiation, line voltage spikes, or other issues that fry fragile circuits. Base Hits There are many application areas where SSL offers a small improvement over other

CONSISTENT HITTING

BUNTING TO FIRST

Sainsbury’s, a supermarket chain in the UK, used GE’s Lumination EL Series ﬁxtures to great operational ends. Not only is the store accruing energy savings, but they believe the new lighting is improving the shopping experience.

This office installation of V2’s Brio LX in the break room of Mackey Mitchell Architects in St. Louis, is a terriﬁc example of a solid base hit—lighting creatively expressed simply and economically, but to great effect.

sources—for example, replacing high-efficiency, T8 or T5 lamps with LED retrofits. While retrofitting T12 technology makes some

Doubles

sense, the case for replacing linear ﬂuorescents is

When the comparison between a

not always as clear. There are certainly instances

conventional and an SSL system

where a replacement lamp with greater direc-

are nearly balanced, decision-

tional distribution, combined with high-efﬁciency

makers are faced with choices

LED sources, will generate savings in open strip

based on available resources and risk aversion. In

light ﬁxtures, it is questionable whether installing

this case, an ROI calculation may show a payback

expensive LED devices in cheap strip lighting is a

in energy savings and operational expense of a

practical approach. Certainly, customers who buy

more expensive solid-state product within an

the cheapest light ﬁxtures are unlikely to pursue

acceptable time period, but at an expense high

lamps worth many times the ﬁxtures cost to save

enough to create consternation over the capital

a few watts of energy. In closed ﬁxtures, or those

employed. In this case, decision making often falls

with efﬁcient optics designed around the ﬂuores-

on which approach presents the least amount of

cent lamp, results can often be worse.

exposure to risk, and the availability of short-

This is an area of consideration where SSL

term funding to move forward. As an example, a

initially appears to be a good idea, but upon close

comparison of a general lighting approach can be

examination, the clarity fades, and the advan-

justiﬁed by operational savings in two years time.

tages become situational in nature. As it is in

For a small commercial ofﬁce or retail customer,

baseball, a single may be a strategic choice. While

the outlay of cash in the near term may outweigh

payback may be longer, or non-existent, decisions

long-term return. This is especially true when

may be made for other reasons. For instance, use

that same cash is also reserved to cover short-

of SSL may achieve an aesthetic end, or present

term market ﬂuctuations. Having cash tied up in

a marketing image. In these instances, the costs

a lighting system may exceed the risk threshold,

involved are not rationalized by ROI analysis, but

while borrowing money just adds to long-term

are shouldered for subjective reasons. There is

risk. On the other hand, when capital is well

nothing wrong with this approach, as long as it is

covered, the attitude toward investing in the long

recognized as such, and not justiﬁed by ﬁctional-

term becomes more attractive. While this is true

izing paybacks or assigning monetary value to

in most all decision-making, it is particularly poi-

esoteric considerations.

gnant when a comparison is closely balanced.

18 • 10.13 • ARCHITECTURAL SSL

SUCCESS ISN’T ALWAYS ABOUT ENERGY—IT CAN BE REALIZED WHERE A DESIRED LIGHTING EFFECT, INCREASED QUALITY OR A REDUCED FIXURE COUNT IS ACHIEVED.

www.architecturalssl.com

Homeruns There are many homeruns attributed to solid-state lighting. This is not always founded on energy savings, or objective measures. In applications where realizing a desired lighting effect, increasing lighting qualities, reduced fixture presence, and optimizing operational impact, solid-state attains both in-field and out-of-the park success. The first home run in solid-state came early in the technology’s introduction: color. RGB and single color LED systems put everyone on their feet. Even when systems cost many times that of a conventional lamp and filter approach, decisionmakers found that end results in both quality of light—saturation, color choice, vibrancy and intensity—delivered by LEDs were a real into-thebleachers hit. The market has always had a desire to utilize color in washes and effects. Before LED, Triples

this was difﬁcult to attain, impossible to maintain,

GROUND RULE DOUBLE

SSL solutions can be shown to

and uncontrollable. In just a few years, buildings,

The retrofit of the Buckley Hall at Amherst College is an example of a solid double— upfront costs had to be accounted for, but long-term benefits, including an acceptable payback, justified a solution that clearly provides improved operational and light quality benefits thanks to Lumenpulse’s Lumentalk control system (see SSL Interactive for more).

deliver a signiﬁcant advantage

public structures, interior spaces, and entire

over conventional products,

building structural features were bathed in color,

with one basic exception: price.

including color effects, video effects, and neon like

Unlike the balancing act of the double, a “triple”

streaks. LEDs have brought to lighting a renewed

will deliver a clear-cut advantage in terms of

interest and celebration of the impact color can

efﬁciency, quality, operational costs and ROI, but

have on the visual environment. Additionally, part

like the frequency of ball players hitting one, it

of the success in color application includes trafﬁc

represents a signiﬁcant expense. For example,

signals, airﬁeld runway, mast marking, ocean

as a replacement to incandescent or halogen

trafﬁc buoy, and navigational marker lighting—

technology, there is no question that LED-based

where the combined beneﬁts of color saturation,

products, either complete ﬁxtures or lamp ret-

long life, low energy use, and environmental

roﬁts, are superior. However, the costs involved

survivability create irresistible results. Certainly,

are seven to 12 times that of incandescent. This

anyone looking for colored light for most any use

initial outlay, even if fully justiﬁed by ROI analysis,

will be hard pressed to ﬁnd an alternative to LED.

represents an unpalatable investment. One clear

such as coves, accents, under-surface or task

typical new home of 70 ﬁxtures, the cost dif-

lighting, solid-state is becoming an obvious ﬁrst

ference between incandescent and solid-state

choice. The small form factor, scalability of LED

ranges from $10-$40 per ﬁxture. In a typical home

arrays, power input to lumen output ratios, and

budget for lighting of $2,000 ($29 per ﬁxture), the

optical characteristics of solid-state are particu-

expense for solid-state integration represents

larly well suited here. Oddly, at a time when solid-

an increase of between $700 and $2,800. This is

state is being promoted primarily as an energy-

going to be a show stopper, even if the end result

saving technology, one of its greatest successes

is a 90% savings in energy cost. In commercial ap-

has been on decorative application based on its

plications, where costs of operation are a greater

form and function.

factor, the clear advantages of solid-state make it a clearer choice.

www.architecturalssl.com

For low-proﬁle architectural feature lighting,

sampling of this is the residential market. In a

The current leading application in which solid-state has attained the status of ﬁrst choice

ARCHITECTURAL SSL • 10.13 • 19

is municipal street lighting and commercial area lighting. The combination of energy efficiency coupled with low maintenance cost and environmental survivability creates a strong case against conventional HID sources. The choice of white light to suit any number of desired end results, and optical efficiency further strengthen the case for solid-state over incumbent sources. Even when the solid-state product is several times the cost of a conventional product, analysis of operational costs (ROI) produces a solid case for solid-state lighting in large area outdoor lighting applications. Another significant homerun for solid-state is refrigeration case lighting. This is an application where incandescent has long since been abandoned, but fluorescent is not particularly well suited. LEDs work exceptionally well in the cool environment, offering significant improvement in energy efficiency, thus reduction in heat to be removed by the refrigeration equipment, creat-

MVP CANDIDATE

As far as non-colored SSL products, municipal street lighting may be LED’s greatest success to date. Here, on the streets of Los Angeles, the city employed Cree/BetaLED’s LEDway streetlights at 4300K, to reduce the city’s energy use by 40%, simultaneously lowering carbon emissions by roughly 40,000 tons—the equivalent of taking 6700 cars off the road.

ing a double beneﬁt. Further, reactive controls can amplify savings by reducing energy when shoppers are not present. Further, for display of perishable products, or those damaged by heat

Z Understand the value of money, now and in

technology is the better choice, there is nothing

in non-refrigerated cases, like produce, bakery

the future. Saving a few dollars today to incur a

wrong with that. Selecting solid-state lighting

and confection displays, the reduced heat reduces

long-term expense can result in losses in future

without proper consideration in order to comply

inventory damage and loss.

opportunities. Setting solid-state aside as too

with a perceived trend will result in disappoint-

expensive without careful consideration carries

ing results. Solid-state lighting is not yet ready to

Hitting Coach Tips

no assurance of real cost savings.

provide all lighting needs.

In the near future, the list of applications in which

Z Match design to the technology employed.

solid-state delivers a home run will grow. As OLED

It is all too common to attempt to compare two

Hit the Batting Cage

matures it will expand on this trend. For decision-

technologies on an apples-to-apples basis that is

The choices in both conventional, hybrid, non-

makers, the choices will remain difﬁcult. There

unfairly skewed toward one or the other. If LEDs

LED/OLED and solid-state technologies will

remains a need to avoid moving too quickly, while

are simply employed as a one-for-one replace-

continue to grow over the next several years.

the pace of development is so rapid that keeping

ment, much of the technology’s advantage is set

Hybrid halogen/CFL lamps, improved efﬁciency

track of the choices is often impossible.

aside, resulting in a poor comparative result,

halogen, induction technology, plasma sources,

unnecessary costs, and less than optimal energy

and extended life linear ﬂuorescent will all

that can help with deciding when to swing, and

performance.

frustrate easy decision making. This will be most

when to wait for the next pitch:

Z Consider controls impact. Solid-state products

apparent in the inﬁeld of singles to triples, where

are signiﬁcantly more controllable, and suffer no

there is less clarity between poor matches and

Z Clearly ascertain how long the lighting system

damage from frequency of control. All conven-

solid hits. There is no indication that this will be

will be expected to remain in service before it will

tional sources suffer color shift, shortened life,

mitigated any time in the next 10 years. This is a

be re-dressed. For example, the longer a system

and limited dimming range. These factors should

time in lighting where all assumptions are in play,

is to remain in service, the more attractive a long

be included in considerations beyond simplistic

demanding decision-makers consider more than

life, low energy use solid-state system will be. If the

ROI calculations.

ever. Investment in evolving a more sophisticated

lighting system is to be updated within 3-5 years

Z Don’t be embarrassed if a current technology

approach to decision making is the surest approach

as part of a normal maintenance cycle, there may

is proven the better choice. If after doing a proper

to capturing the highest value from the widest

be a case for choosing conventional general lighting.

job of evaluation, it is shown that an existing

range of choices available to lighting in its history.•

There are several elements to decision making

20 • 10.13 • ARCHITECTURAL SSL

www.architecturalssl.com

Function Follows Form?

It took HID experts to create the perfect LED lamp. Visit eyelighting.com or call us at (888) 665-2677 to learn how LEDioc can improve your lighting

Circle 12

TOPICS AT THE FRONT

THE ART OF SOLID STATE LIGHTING

22 • 10.13 • ARCHITECTURAL SSL

www.architecturalssl.com

TOPICS AT THE FRONT

arely a decade since LEDs

Z Environmental Art

Z Projected Art

Z Integrated Art + Architecture

entered the mainstream, it

LEDs as an art form has rapidly

Used in tandem with sophisticated

Outlining a building such as the

has become a major player

grown in public appreciation. At

projection techniques, LEDs add color

Star Performing Arts Centre in

as an interpreter of functional and

the James Turrell exhibit at New

and dramatic imagery to events such

Singapore, LEDs can turn a structure

ﬁne art. Once limited as a neon

York’s Guggenheim Museum,

as the city-wide celebration Vivid

into a painterly expression of form,

replacement for ﬂexibility and

visitors who ﬁlled the seating

Sydney, and the historical outdoor

giving it a glowing substance on the

color, the beneﬁts for both charac-

platforms at ground level were

documentary Fresque de Nuit, in

night sky.

teristics—as well as ease of main-

mesmerized by a color-changing

Mont-Laurier, Canada.

tenance, reduced energy use, and

bath of light swirling around the

extended life—have allowed LEDs

65-ft.-wide by 95-ft. high central

Z Transformed Outdoors

Google ofﬁces have set a standard

to become a palette for light artists

atrium. North of the border, in

The lighting program for Dallas’

for lifestyle work settings to visually

and lighting designers worldwide.

Winnipeg, Canada, the fanciful

Klyde Warren Park incorporated

support the creative process. In the

That said, LED “art” installations,

“emptyful” has turned a downtown

LEDs into the inspirational solution

Dublin, Ireland ofﬁce, the lighting

typically fall into one of ﬁve forms:

open space into a destination for

for constructing a public park out of

creates a distinctive ﬂow linking

residents and visitors.

an urban void.

the design throughout the spaces.

Z Transformed Indoors

Z LEDs As Environmental Art

Light artist James Turrell has accomplished a rare feat in the art world:

James Turrell at the Guggenheim

simultaneous exhibits of his work at three major U.S. museums. In New

New York City

York, Houston and Los Angeles, Turrell’s work drew crowds from late spring until late September; the current retrospective in LA runs through April of

Curators:

2014. Septuagenarian Turrell is no come-lately to the light-as-art scene. He

Nat Trotman, Carmen Giménez

has been experimenting with light forms since the mid-1960s. His newest

Photos:

and largest major public work was on view at the Guggenheim where the

David Heald

rotunda bore little resemblance to the space designed by Frank Lloyd Wright.

OTHER WORLDLY

The Turrell exhibit at New York’s Guggenheim Museum was a “spiritual experience,” commented one reviewer.

A solid tapering cone was constructed over the spiral openings from the ground ﬂoor to the top. Visitors gathered at the bottom of the rotunda, looking up at elliptical bands of light undergoing constant transformation as the graduating light patterns beamed from sets of LED ﬁxtures mixed with daylight from the oculus at the top.

www.architecturalssl.com

ARCHITECTURAL SSL • 10.13 • 23

TOPICS AT THE FRONT

Z LEDs As Environmental Art

In collaboration with artist Bill Pechet, Lumenpulse provided the illumination

emptyful

for the urban sculpture, “emptyful,” in Winnipeg. Standing 35 ft. high and 31

Winnipeg, Manitoba, Canada

ft. wide, the interpretation of a transparent beaker-like vessel often used in laboratories has been installed in the downtown Millennium Library plaza.

Lighting Design:

Pechet Studio, based in Vancouver, won an international competition to create

Pechet Studio; Lightworks

a piece of artwork as part of Winnipeg’s Public Art Program to invigorate

Photos:

the center of the city.

FEAT OF ART AND ENGINEERING

Lighting for ‘emptyful’ had to be slender, discreet, and powerful, according to Pechet. A total of 24 bands of 4-ft.-long Lumenfacade RGB strip lights are secured in an H beam to the sculpture.

Courtesy, Pechet Studio

Z LEDs with Projected Art

From May 24 to June 10, Sydney

Vivid Sydney

pulsated with light—projected,

Sydney, Australia

beamed, and reﬂected. The ﬁfth Vivid Sydney drew more than

Lighting Design:

800,000 to the annual lightfest.

32 Hundred Lighting;

One of this year’s new events was

The Spinifex Group

the lighting of the Harbour Bridge.

Photos:

It was turned into an interactive

Courtesy, Vivid Sydney 2013

light experience by 100,800 colorchanging LEDs, a collaboration between 32 Hundred Lighting and Intel using Intel Core processing technology. Visitors at select control stations could select a section of the bridge to light up, choose their colors, follow the prompts on a screen and then watch their selection appear on the structure. Other events this year included “Aqua-

PAINT A PICTURE

Entire façades, such as the Opera House, became a canvas for projected architectural details that gave threedimensionality to the images.

24 • 10.13 • ARCHITECTURAL SSL

tique” where images appeared on the projected spray of massed water fountains in Darling Harbour.

www.architecturalssl.com

TOPICS AT THE FRONT

ROCK SHOW?

Moving light projectors perform like a concert venue. The lighting—a mapped video projection show—creates aerial effects on the exterior surfaces, including the tree canopy.

The city of Mont-Laurier in the Laurentian Mountains, 170 miles from

Z LEDs with Projected Art

Montreal, wanted to commemorate its 100th anniversary. Ambiances

Fresque de Nuit

Design Productions was commissioned to create Fresque de Nuit (night

Mont-Laurier, Québec, Canada

frescos) an outdoor, multi-media event that dramatized the history of the city and the region. Martin Gagnon, who created “Aurora Borealis,” in Québec

Lighting Design:

City, was responsible for the design, production and implementation of the

Ambiances Design Productions

sound-and-light event. Fresque de Nuit has proven to be a huge success,

Photos:

with signiﬁcantly more visitors than estimated.

J-P Bonin

In Dallas, there was a desire to create an outdoor

Z LEDs Transforming Outdoors

park in previously unused space. The city turned to

Klyde Warren Park

New York’s Focus Lighting. “We approached this

Dallas

commission knowing that as lighting designers, we were an integral part of a project that would make

Lighting Design:

a difference in the community,” says Paul Gregory,

Focus Lighting

Focus’ president. Klyde Warren Park claimed the

Photos:

unused air rights above the multi-lane Woodall Rogers

Joshua Spitzig

Freeway Provides to create a destination park between the city’s business district and the arts district on the opposite side. The Ofﬁce of James Burnett, the Dallas landscape architects who initiated the concept of an elevated park to span the chasm, collaborated with Focus to create a 5.2-acre series of outdoor room-like spaces that would be available both daytime and evening. Illumination was critical, as lighting would provide a user-safe environment and give expression to the trees and foliage at nightfall.

OUT OF THIN AIR

An illuminated crown identiﬁes the entry into Klyde Warren Park where LED sources contribute to the park’s variegated sculptural landscaped presentation with strip lights, submersible color-changing ﬁxtures and lighting tiles.

www.architecturalssl.com

ARCHITECTURAL SSL • 10.13 • 25

TOPICS AT THE FRONT

 LEDs as Architectural Integration

An architectural statement on the Singapore urbanscape better be bold and

Star Performing Arts Centre

creatively lit. With 5.3 million people packed into 275 sq. mi., there’s a good

Singapore

chance lots of people will see it. For the Star Performing Arts Centre & Star Vista, which combines an auditorium above a multi-level shopping mall,

Lighting Design:

Tokyo-based Lighting Planners Assocs. Inc. dramatized the angular exterior

Lighting Planners Assocs., Inc.

geometry profile with Aristo’s 10W/m LED strip lights. For the transparent

Photos:

upper level, 150W CMY color-changing metal halide illumination identifies

Courtesy, Lighting Planners Assocs.

the theater bowl skin in deep blue and turquoise.

 LEDs Transforming Outdoors

Cheekwood, one of Nashville’s landmark estates, served

Cheekwood Botanical Garden &

as the host of a breathtaking light installation by UK

Museum of Art

artist Bruce Munro: “Field of Light.” The large scale out-

Nashville, Tenn.

door artwork on the grounds of the botanical gardens

ETHEREAL

RGB floodlights wash the auditorium’s skin, Side glow fiber optics highlight the curves in cool white. The underside of the auditorium steps are also lit with LEDs. The technology helped the project achieve environmental recognition.

is the first of seven outdoor pieces that Munro and his Lighting Design:

team will install in the Music City. In this case, the artist

Bruce Munro

used light as a means to transform the the gardens

Photos:

and the site’s rolling hills into an enchanting iridescent

Courtesy, Cheekwood

landscape that emerges organically at nightfall. The artist and his team spent 6500 hours carefully planning and designing the site-specific exhibition. It is only the second time the artist has showcased his work in the United States. “Cheekwood is the most perfect place to exhibit because it provides a variety of opportunities to respond to, as each space varies in scale and topographical character,” says Munro.

IN HARMONY

Visitors are mesmerized by 20,000 glass spheres that rise from the grounds on slender stems. Their sheer volume, says artist Bruce Munro, siloutted against the mansion, creates an effect that’s both natural and otherworldly.

26 • 10.13 • ARCHITECTURAL SSL

www.architecturalssl.com

TOPICS AT THE FRONT

SEARCH “OFFICES”

Google’s Dublin offices are themed, including “Appiness,” “@home,” “Be Green,” and “Innovate.”

At 14 stories, “Google Docks” is the tallest building in Dublin. Along with

Z LEDs Transforming Indoors

three adjacent structures, the ofﬁce complex handles sales, marketing,

Google

ﬁnance and engineering for Europe, the Middle East and Africa. Each ﬂoor

Dublin, Ireland

represents a different theme. In an open plan presentation space, David Nolan of Britelux provided a pair of residential-quality Liza pendant

Lighting Design:

chandeliers, with shades of open interlocking circles enclosing a single

Britelux; Camenzind Evolution

clear lamp. For individual work spaces, another residential element is the

Photos:

pole-mounted ﬂoor ﬁxtures with custom shades made in Ireland.

Peter Würmli

The Victoria and Albert Museum of Childhood in London’s

Z LEDs Transforming Indoors

east end, is a branch of the main V&A museum, the

Victoria & Albert Museum of

U.K.’s national museum of applied art. Opened originally

Childhood

in 1872, the iron frame structure of the building features

East London

a clear vaulted ceiling over the main three-level exhibition hall. Around the balconies are metal railings

Lighting Design:

formed of open geometric design. In 2012, the museum

DHA Design

recognized the fact that the existing ﬂuorescent lighting

Photos:

was unable to showcase the elegance of the vaulted

Lumenpulse

ceiling, nor the intricacies of the railing. DHA Design was retained to bring new lighting that would dramatize the structure and accent the museum’s display of toys and childhood playthings. DHA employed Lumenpulse’s Lumenline pendent/indirect luminaires, which were customized to include track spots for special exhibits. A Pharos touch panel controller is programmed to beam soft pink for daylight hours and a gradual color-changing display for evening.

THE RIGHT SUITOR

Museum officials desired to highlight the building’s historic vaulted ceiling and railings, and traditional ﬂuorescent couldn’t do the trick. Instead, DHA design turned to LED, which certainly tints the ceiling without being over the top.

www.architecturalssl.com

ARCHITECTURAL SSL • 10.13 • 27

F§±TUR§D PRoj§Ct

LIBRARY OF BIRMINGHAM, BIRMINGHAM, U.K.

Architect: Macanoo Architects, Delft, Netherlands Lighting: Happold Lighting, London Products: Wila LED downlights; Lightmotion LED strips; Light Motions LED halo pendants; LEDlinear LED amphitheater steps; ACDC LED Como fittings. Text: Vilma Barr Photos: Christian Richters The Challenge: Present-day Birmingham has a population of over one million, 25% under the age of 25, and a student population of 50,000 —the second highest in England. In 2008, the Birmingham City Council began to plan for the fourth library in the city’s history. The existing Central Library building was considered unfit for the masterplan. The Solution: Architect Francine Houben of Mecanoo Architects was influenced by the circle as a motif, derived from the vintage industrial gasometers used in Birmingham’s jewelry manufacturing industry. At 377,000 sq.ft., it is Europe’s largest civic library. LEDs are utilized for ambient, accent, decorative, and wayfinding throughout the building.

Opened in September 2012, the Library of Birmingham is described as Europe’s largest library housing both resources for academic research and a lending library. Its façade is wrapped in a ﬁligree skin of metal loops, and a circular patio carved out of Centenary Square in front of the main entrance creates a protected outdoor space, directing daylight deep into the building.

“We don’t know what the future of the library will be,” says architect

lighting strategies for the interior and exterior of the library and the Repertory

Francine Houben of Mecanoo Architects, Delft, Netherlands, “so we have

Theatre. Phillips and her team were assigned the responsibility to create

designed space for change to last over the next 100 years, attracting up to

lighting that supports the distinctive architectural language of the building

10,000 people a day.” The Library of Birmingham faces Centenary Square,

while providing the functional lighting requirements for each ﬂoor. To add

the busiest pedestrian route in the city. Its proﬁle is four stacked transparent

drama to the façade, she chose RGB DMX color-changing ﬁttings, controlled

glass squares, encased in a delicate metal ﬁligree skin that gives the structure

by LED Como ﬁttings by ACDC.

a lightness and airiness that belies its 377,000-sq.-ft. size. Laura Phillips, discipline director for Happold Lighting based in London, participated in creating the esthetic illumination themes and energy-saving

28 • 10.13 • ARCHITECTURAL SSL

Inside, spaces have been carved out for adult and children’s libraries, studying, meeting, working, conversation areas, a multimedia center, community health center, exhibition halls, live performances, and cafés. The

www.architecturalssl.com

Shedding Light on Learning

individual ﬂoors are awash with daylight. A continuous line of desks follows

temperature metal halide downlights ﬁtted with integral electronic control

the curve of ﬂoor-to-ceiling windows.

gear, the most energy-efﬁcient systems available during the structure’s

Phillips says that wall washing and the majority of downlights are ceramic

design phase. For specialized applications that Phillips identiﬁes as

metal halide due to the BREEAM [Building Research Establishment Environ-

“milkyway downlights,” she speciﬁed LED downlights from Wila. Cathode

mental Assessment Method] efﬁciency targets that had to be met. “When

was selected for some areas at the initial stages over LED linear ﬁttings for

we designed the lighting for the building, LED sources at that time were

cost reasons, Phillips explains. For the linear steps detail to the amphitheater,

unable to reach these targets given the ceiling heights,” she says. To meet

Phillips selected LEDs by LEDlinear.

the CIBSE [Chartered Institute of Building Services Engineers] light-level recommendations, lighting is largely delivered from high-level warm color

www.architecturalssl.com

During the day, escalators and staircases climb through rings of bookshelves to the daylight-emitting circular oculus at the top. Supplemental

ARCHITECTURAL SSL • 10.13 • 29

illumination for the book rotunda is produced by LED strips by Light Motions. Suspended from the black-painted ceiling above the book stacks and the rows of worktables in the areas between them are halo pendant fixtures. Phillips’ choice for these softly glowing LED illuminated elements to augment the recessed downlights are fixtures by Light Motions. Phillips also points out that their shape offers a visual change-of-pace to the angularity of the rows of book stacks. At the building’s summit is a gold-tone dome that houses the Shakespeare Memorial Room. Reconstructed from a wood-lined reading room in Birmingham’s original c. 1882 Victorian library, it is filled with artifacts from the archives of the immortal playwright. Contributing to the library’s BREEAM Excellent rating are the building’s interior layout, façade system, and building materials. Buro Happold served as the Library’s mechanical and structural engineers. The integrated programs for the building incorporates gray water systems and ground source heat pumps, mixed-mode and natural ventilation, a façade that responds to external conditions and openings that allow fresh air intake and outflow, and landscaped roof spaces. Library director Brian Gambles credits the close cooperation between Buro Happold and the Library’s staff for working together to deliver their vision. At the opening, Gambles said that it is the new “social heart of the city, connecting people of all ages, cultures and backgrounds.“ Architect Houben observed that the repeating circles of the façade generate shadows and reflections to create a world inside the building. “It is an inner world of continuously changing shadows, an ode to the circle,” she said, “embodying universality,

U The Library of Birmingham faces Centenary Square, the busiest pedestrian route in the city. A delicate metal filigree skin encases the glass squares, giving the structure a certain lightness. Y Live performances can be staged on the outdoor circular plaza at the library. Z Suspended from the blackpainted ceiling are halo pendant fixtures, chosen to augment the recessed downlights and extend the circular theme of the exterior façade and interior architecture.

unity, timelessness, and inﬁnity.”•

30 • 10.13 • ARCHITECTURAL SSL

www.architecturalssl.com

ARCHITECTURAL SSL • 10.13 • 31

Visitors to the Library of Birmingham can access curving rows of bookshelves via staircases or suspended escalators. Supplemental illumination for the book rotunda is produced by LED strips.

32 • 10.13 • ARCHITECTURAL SSL

www.architecturalssl.com

U The existing Repertory Theatre was upgraded with new mechanical systems, auditorium and stage lighting, and a shared theater and foyer space with the adjacent Library. Z At the building’s summit is a gold-tone dome housing the renovated Shakespeare Memorial Room, featuring the vaulted ceiling-covered reading room from the c. 1882 Birmingham Library, archiving the playwright’s works.

“Our dream was for a building that brings coherence to Birmingham’s urban network. Changing vistas unfold as visitors navigate through the various spaces.”

www.architecturalssl.com

ARCHITECTURAL SSL • 10.13 • 33

Circle 13

“DOME RUN” REVIVING THE ARCHITECTURE OF MIT’S LIBRARY Massachusetts Institute of Technology Library, Cambridge, Mass.

Located in the heart of the Massachusetts Institute of Technology stands the Barker Engineering Library, whose reading room is capped by a great dome—one of the university’s signature architectural structures. At 64-ft. in diameter, the dome with a 25-ft. oculus was made with similar dimensions as the dome of Rome’s Pantheon. The single large round glass window over the oculus serves as the only difference between the two architectural classics. During World War II, the oculus, however, was covered with blackout shades. With the exception of a brief uncovering in 1946, the dome remained covered until 2012. When MIT began investigating renovation opportunities, Gary Tondorf-Dick, manager of special projects for the university’s Dept. of Facilities, was the first to notice the true potential of the dome. “It was such a unique and beautiful space—it was clear we were not adequately emphasizing it,” said Tondorf-Dick. The team had been conducting a restoration project on the exterior of the library and decided it was the opportune time to open the oculus. Additionally, MIT knew the skylight would provide adequate light while the sun was out, but wanted to investigate options for round-theclock illumination in the 24-hour per day facility. The 70-ft. library ceiling required a fixture that could provide quality direct light to reach down to the reading area while simultaneously using the same fixture type to accent the architecture. Furthermore, MIT needed a long-lasting source that would minimize maintenance. “We were looking for a fixture that would distribute

ABOVE: With the help of computer modeling, lighting designers Sladen Feinstein were able to explore many different options for the reading area under the library dome. “We could not physically test all of the options,” said Julie Rose, a senior associate at Sladen Feinstein. “The system allowed us to analyze photometric data and build a digital model that helped us accurately assess the true light patterns.”

light evenly across the library to give students enough light to work and make the architecture the focal point of the space,” said Julie Rose, senior associate at Sladen Feinstein Integrated

Images: Courtesy Acuity Brands

Lighting Inc., the project’s lighting designer. LED seemed the obvious choice, but the

www.architecturalssl.com

ARCHITECTURAL SSL • 10.13 • 35

SSLProﬁle:

Massachusetts Institute of Technology Library, Cambridge, Mass.

THE CHALLENGE: Find an appropriate lighting solution to re-illuminate the shuttered great dome and oculus of MIT’s Barker Engineering Library. The university wanted lighting that would seamlessly integrate into the overall architecture, as well as a solution that would provide the appropriate light levels for library use despite the high ceilings. THE SOLUTION: To achieve color boards balanced with natural daylighting and incandescent lights, an adjustable LED downlight solution from Gotham allowed the lighting designers to change the beam pattern and intensity of the ﬁxtures around the rotunda, allowing the team to distribute light evenly across the library to give students enough light to work and make the architecture the focal point of the space. PROJECT CREDITS:

Client: MIT Lighting Design: Sladen Feinstein Integrated

BORN AGAIN “These LED downlights exceeded all of our expectations for the project, and truly highlighted one of the most well-known landmarks on campus,” says MIT’s Gary Tondorf-Dick.

Lighting Incorporated PRODUCTS:

Gotham: Incito LED open downlights. Acuity: nLIGHT control.

This ﬂexibility allowed the team to adapt the

desk so light can be manually adjusted as

ﬁxture to highlight the dome. Sixteen downlights

needed. And the downlights can be accessed

were designed with a sloped ceiling adapter to

from both above and below the ﬁxture to

properly ﬁt within the round shape of the structure

address maintenance concerns.

university was concerned about maintaining

under the clerestory. Additionally, to create

color consistency. “We were afraid the contrasting

continuity in the level of light across the space,

Lighting Draws Visitors

colors would create an insufﬁcient reading space

32 ﬁxtures were placed at the lower level of the

After nearly 100 years, the rotunda is ﬁnally

and nobody would sit there,” said Tondorf-Dick.

dome and conﬁgured with different beam

illuminated with a solution that brings the

“So we balanced color boards with natural day-

patterns and a lower lumen output. “We achieved

detailed architecture to life, while providing a

lighting and incandescent lights.”

our goals with one solution,” said Tondorf-Dick.

functional space for students. “This is such a

“The alternative would have been to select more

beautiful project to come to life,” said Rose. “The

It All Comes Down to One Fixture

than one type of ﬁxture, and this would have

uplighting in combination with the downlight

After analyzing computer modeling and reviewing

made the process even more difﬁcult.”

drastically enlivened the space.”

numerous light patterns, the team determined

Areas of conﬂicting light patterns and colors

Tondorf-Dick is also pleased with maintenance

there was only one ﬁxture that would achieve

were eliminated because the dimming rate

options. “Because we can access the luminaires

the university’s goals: Acuity Brands’ Incito LED

remains the same at every height. Additionally,

from the top and bottom, we can easily service

open downlights from Gotham. Nearly 50 of the

integrated nLIGHT control technology helps

the ﬁxtures if needed. We can also ﬁne-tune the

luminaires were placed strategically around the

balance the light when daylight streams in. This

controls at any time with the nLight controls

rotunda. “This ﬁxture was the perfect solution,

controllability also helps reduce energy usage

system located at the librarian desk. ”

as it comes in a large variety of conﬁgurations,”

and maximizes the longevity of the LEDs.

said Rose. “We were able to test beam intensity

The ﬁxtures in the sofﬁt of the Corinthian

But the real litmus test? Since the renovation, the reading space has been so popular among

and narrow it down to the conﬁguration that

columns provide an even beam distribution and

students that the librarians have had to increase

gave us both enough light and the intensity we

consistency so students can work comfortably.

seating capacity underneath the rotunda due to

needed for the space.”

A control panel was installed at the librarian

the high demand.•

36 • 10.13 • ARCHITECTURAL SSL

www.architecturalssl.com

The Superhero of aisle lighting. W FT s Â&#x17D; Â&#x17D; "ATWING DISTRIBUTION s 2EPLACES &LUORESCENT The Producer linear LED makes your aisles come alive, focusing light on your shelves rather than simply providing general illumination in your aisles. This new, quality, energy efďŹ cient LED delivers crisp white light, providing enhanced clarity, and making it easier for customers to see packaging and read labels. The Producer features consistent LED color, dimming, motion sensing, instant on/off, and energy/maintenance savings. For more information visit please visit amerlux.com or call 973.882.5010.

Circle 14

Inspired by Nature

Invented by Nichia Only nature produces better, more efficient light than Nichia, inventor of the white LED. And with nature to inspire us, we are ever researching, developing beautiful light that lasts longer using less energy...through our broad product offerings. So for all of your lighting needs, get inspired! Ask for the worldâ&#x20AC;&#x2122;s best LEDs, only from Nichia.

Ever Researching for a Brighter World

info @ nichia .com Circle 15

â&#x20AC;˘

www. nichia.com

THE RIGHT LINES OF ILLUMINATION BRING OUT BEST IN FASHION FINERY Hugo Boss Retail Stores Los Angeles & New York

Hugo Boss commissioned LA-based lighting designers Visual Terrain to bring to life the many different levels of lighting required for their chic retail settings. This particular commission involved lighting work for a pair of stores in the Los Angeles area and one in New York. The team was led by Michael Mahlum, director of design & production at the firm’s Chicago office, as well as Kate Furst, a designer at the firm’s LA office, who directed the storefront designs for the New York store, as well as for the South Coast Plaza store, one of the LA locations. The Entrance Tasked with providing the proper illumination for the store front locations, the designers wished to illuminate the critical window display with a soft frame of light that would accent and showcase the window design, but not detract from the display itself. Visual Terrain experimented with a number of solutions, but none provided the output or effect desired. The designers ultimately discovered an LED linear fixture—Tivoli’s Illumiline. A 1-watt fixture that distributed a 120° beam spread for an even glow for illumination effects within 3 in. of the light source, the fixture also could throw light up to a 2-ft. from the source. Its small rectangular profile—1/2 in. x 9/16 in.—enabled it to fit into profiles of less than 1 in. for discrete or visible illumination. The narrow profile and the even light distribution was just the right combination to cast a continuous glow of light along the top

ABOVE: The soft light cast by the small-profile, linear Illumiline LED fixture from Tivoli used in the storefronts (top) reflected onto the brushed metal mesh inside each window, creating a stunning 3D effect that was achieved without having to use optics—an unexpected result that saved the project’s lighting designers, Visual Terrain, extra work and expense. Tivoli’s Coveline 120 fixtures were employed for complementary cove lighting.

and bottom of each window. In fact, the soft light cast by the ﬁxture reﬂected onto the brushed metal mesh inside each window, which created a stunning 3D effect—a major bonus for the Visual

Images: Courtesy of Tivoli

Terrain designers, as they expected to have to add optics to achieve such a result.

www.architecturalssl.com

ARCHITECTURAL SSL • 10.13 • 39

SSLProﬁle:

Hugo Boss Retail Stores, Los Angeles & New York

THE CHALLENGE: Strongly, but subtly, use LEDs to illuminate store entrances and merchandise displays in Hugo Boss’ chic LA and New York stores while still maintaining a balance with the existing fluorescent lighting. Careful consideration to placement, color temperature and fixture aesthetic had to be observed to ensure a visually pleasing lighting scheme. THE SOLUTION: Thanks to low profile and flexible cove lighting fixtures that also offered a custom color, designers from Visual Terrain were able to deliver accent lighting that completely matched the stores’ existing fluorescent lighting, preserving the original lighting scheme. PROJECT CREDITS:

Client: Hugo Boss Architect: Creative Design Architecture, Inc. Location: New York and Los Angeles PRODUCTS:

Tivoli: Illumiline, Coveline 120.

COLOR IS KEY The custom color temperature mixing options offered by Tivoli allowed Visual Terrain to visually match the accent

LEDs to the 3000K CCT of the fluorescent sources. “Having a custom color that matched the fluorescent lights allowed for us to alleviate any potential color temperature issues,” says project leader Michael Mahlum.

Lighting the Coves

could also bend 90° horizontally and 30° vertically

of Tivoli’s custom color temperature mixing

When it came to create the coves that accentuate

to ﬁt concave and convex curves without special

capabilities. The manufacturer has the ability

the main area of the stores, the Visual Terain

hardware. This made it especailly easy to install

for designers to identify a speciﬁc Pantone No. or

designers selected another Tivoli product, the

the sources in the coves and also at the toe kick

X,Y coordinate on the CIE1931 color chart and

Coveline 120. Mahlum said they liked the product

area under the cashier desk.

produce a color LED module speciﬁc to that color.

because of its output and ﬂexibility, as well as

Featuring directional mounting and adjust-

All of the cove ﬁxtures were speciﬁed and manufac-

the manufacturer’s willingness to adjust the

ability of +/- 10°, 20° and 30°, designers were

tured with a custom color, speciﬁcally developed

product to meet the required criteria.

able to manually set the angular throw of light

for Hugo Boss’ retail stores. For this particular

individually, distributing light over 160° with the

project, Tivoli tested several combinations

Standard Model Series.

and visually coordinated a match to the existing

“Most important was the fact that 120-volt power could be used, which meant we did not need a transformer,” says the designer, who went

3000K ﬂuorescent used throughout the store.

on to explain it’s always a challenge to ﬁnd good

Color Correct

mounting locations in millwork for transformers as

One of the objectives of this project for Visual

the Coveline product is also tightly binned,

they need to be accessible for future maintenance.

Terrain was keeping color consistency throughout

coming within 2 standard deviations from the

“The use of this product meant we did not have

the store design, despite using a mixture of LED

BIN target on the MacAdam Ellipse. The use of

ﬁnd such a location,” says Mahlum.

and ﬂuorescent sources. The challenge was to

these industry-leading tools and methodologies

The ﬁxture, in fact, runs directly off basic line

In addition to the color-matching capabilities,

make sure that all the sources matched as closely

greatly assisted the designers in achieving their

voltage. It’s also energy-efﬁcient—only 5.5 watts

as possible since there can be many variations

goals. Said Mahlum of the process, “having a

per ft.—with no driver loss and low power factor.

of up to 3000K. To achieve the color consistency

custom color that matched the ﬂuorescent lights

Another bonus was that the ﬁxture virtually

and visually coordinate with the stores’ existing

allowed for us to alleviate any potential color

eliminates any dimming issues. The ﬂexible system

ﬂuorescent ﬁxtures, Visual Terrain took advantage

temperature conﬂicts.”•

40 • 10.13 • ARCHITECTURAL SSL

www.architecturalssl.com

Circle 16

Control the color of your seasons... Introducing

HP2™featuring

For every season there is a reason for change — B-K Lighting gives you complete control to match your environment at your ﬁngertips. Precision 2™ In-Grade with Color Tuning BKSSL™ Technology makes it easier than ever to control the color of your seasons.

Circle 17

www.bklighting.com

www.bkssl.com

LEDReplacements PRODUCTS

IS IT A LAMP OR A FIXTURE?

HALOGEN REPLACEMENT OPTION

WORKHORSE REPLACEMENT

The Lighting Science Deﬁnity line of high-performance

The Halco Lighting 6W ProLED MR Series replacement

LED BR30 Flood Lights from Cree can replace current 65W

PAR 38, PAR 30 and PAR 20 lamps includes the innovative

lamp is up to 83% more efficient than the 35W halogen

incandescent lamps with signiﬁcant energy savings—they

Gimbal PAR design, allowing users to adjust beam direction,

MR lamp it’s designed to replace. The series, which also

draw only 9.5W. Designed for use in compatible track and

even in ﬁxed-direction ﬁxtures. The lamps feature an inte-

includes 3W, 4.5W and 8W products, includes MR16 and

recessed ﬁxtures, they feature safety-coated glass for

grated motion sensor, along with a Bluetooth programing

MR11 lamps with Gu5.3 bases and an MR16 with a GU10

shatter resistance and provide warm illumination with a color

interface. The unique housing both protects the light

base, in color temperatures ranging from 2700K to 5000K,

temperature of 2700K. The lamps also are UL damp-rated.

engine and allows for 360-degree rotation.

and with a variety of beam spreads.

´ Visit www.cree.com or Circle 272.

´ Visit www.lsgc.com or Circle 270.

´ Visit www.halcolighting.com or Circle 271.

DO§ r§s§±rCH

Replacements Lamps Starting to Hit Home So, we all know LEDs offer huge potential for

Studying nine applications in the three major

As the report’s authors note, LED lighting

cutting the amount—and resulting cost—of

categories of indoor lamps, indoor luminaires

products are generally classiﬁed as either lamp

energy used for lighting, but quantifying that

and outdoor luminaires, investigators found:

replacements or luminaires. An LED “lamp” is an

value has been a more difﬁcult proposition.

assembly with a standardized base designed for

Now one group of researchers say they have an

Z A-type lamps made up 41% of all LED instal-

use with corresponding standard lamp holder,

answer, estimating that 49 million LED lamps

lations in 2012, even though they only have a

or Edison socket. Generally, LED lamps are

and luminaires were installed in U.S. homes and

1% penetration rate in that market. MR16-style

integrated—that is, the LED driver component

businesses in 2012, saving owners approximately

LEDs, however, reached a 10% penetration rate—

is contained within the lamp’s housing. LED

$675 million. A wholesale switch to LEDs, contend

the highest of any studied category.

luminaires, on the other hand, are a complete

the researchers, could save consumers close to

Z Energy savings related to LED use, vs. tradi-

lighting product, incorporating both the LED

$37 billion in annual energy costs.

tional lamping and ﬁxture options, totaled 71

light-emitting elements as well as the driver.

trillion British thermal units (tBTU) in 2012.

Typically, LED lamps are designed as direct

in Common Lighting Applications,” sponsored

Z Potential energy savings if all current lighting

replacements for existing general-service

by the U.S. Energy Dept.’s Solid State Lighting

in the nine studied categories was provided by

incandescent/halogen lamps. LED luminaires,

program, was authored by Navigant Consulting.

LEDs could reach 3,873 quadrillion BTU (quads).

however, represent a holistic change-out of the

The report, “Adoption of Light-Emitting Diodes

42 • 10.13 • ARCHITECTURAL SSL

www.architecturalssl.com

LEDReplacements

EDISON WOULD APPROVE

TRY HOLDING A CANDLE TO THIS ONE

FOR A WARM FEELING

Following the shape of the classic Edison lamp, this 10.5W

The Toshiba B11 line of LED candelabra lamps now includes

Featuring the warm illumination traditionally associated

A19 LED lamp from Philips is an easy replacement for

a 40W-equivalent, along with an option that ﬁts E26

with incandescent BR-style lamps, new Acculamp LED

existing 60W incandescent options in just about any ﬁxture.

candle-lamp bases. The lamps are available with a color

BR20, BR30 and BR40 offerings look like the 50W to 75W

This energy-saving alternative offers similar lighting

temperature of 2700K and come in both frosted and clear

lamps they replace, but draw only 8W to 17W and provide

characteristics—a color temperature of 3000K and color

ﬁnishes. Both feature rated lifespans of 25,000 hours,

a service life that could stretch through multiple decades.

rendering index of 85—but with a signiﬁcantly longer lifespan.

meaning fewer trips to fetch the ladder for replacement.

These economy-grade products are designed for track,

´ Visit www.philips.com or Circle 273.

´ Visit www.toshiba.com or Circle 274.

recessed and accent use in commercial applications. ´ Visit www.acculamp.com or Circle 275.

existing lamp and ﬁxture system. As a result, the

still reﬂects less than 1% of the total market, in

designs of lamps and luminaires vary signiﬁcantly.

which incandescent lamps remained in 55% of all

In the category of indoor lamps, Navigant looked at four speciﬁc replacement applications: A-type, directional, MR16 and decorative. They

sockets and CFLs were screwed into 43% of all other A-type ﬁxtures. Energy savings already have been accruing

estimate these lamp types represent about

in this category, thanks to requirements put in

57% of all U.S. indoor and outdoor installations.

place through the Energy Independence and

Conventional A-type lamps, including compact

Security Act of 2007, with consumption dropping

ﬂuorescent products, offer one of the biggest

to 1,057 tBTU in 2012, from 1,134 tBTU in 2010.

opportunities for LED replacement offerings

A-type LED lamps installed in 2012 are estimated

because of the enormous number of target sock-

to cut related lighting demand by approximately

ets—estimated at 3.3 billion.

21.9 tBTU in that year. Switching all remaining

Between 2009 and 2012, the installed stock of

A-type lamps to LEDs could reduce demand by

LED A-type lamps has grown more than 52 times.

an additional 822 tBTU, for annual energy cost

However 2012’s 19 million installed LED lamps

savings of almost $8 billion.

www.architecturalssl.com

BECAUSE LEDS CAN MAKE FINANCIAL SENSE AND HAVE THE ABILITY TO OFFER A BETTER QUALITY, MORE RELIABLE LIGHTING SERVICE, SUBSTITIONS ARE TAKING PLACE.

ARCHITECTURAL SSL • 10.13 • 43

LEDReplacements PRODUCTS

STARRING ROLE

COLOR YOUR WORLD

TOUGH ENOUGH

Maxlite's LED Omnidirectional A19 lamps are now qualiﬁed

These RGB color-changing bulbs from Environmental Lights

These Borealis Lighting 40W- and 60W-equivalent A19

to carry the Energy Star label. The lamps are available in

can be controlled using an Apple or Android app to produce

lamps are available in frosted and clear models (the clear

7W, 10W and 15W models replacing incandescent lamps

illumination in any of 50 hues, communicating through a

lamps make their LED technology easy to see), with poly-

using 40W, 60W and 75W in all standard applications.

WiFi router. Other members of this family of WiFi-enabled

carbonate lenses replacing the glass used in traditional

They replicate incandescent products, with a 300-degree

lighting are “white” adjustable bulbs allowing a range of

incandescent products. Their patent-pending design provides

beam angle that produces even light from the socket base

color temperatures from 3000K to 6500K, and white

surge protection and allows dimming with triac and reverse-

and above, in all directions.

dimmable bulbs. Controllable strip lighting, along with

phase dimmers.

´ Visit www.maxlite.com or Circle 276.

proprietary controllers, also are available.

´ Visit www.borealislighting.com or Circle 278.

´ Visit www.environmentallights.com or Circle 277.

±PPLiC±TiO∑S

A WINNING GAMBLE

LEDs CHECK INTO HISTORIC HOTEL

ARTFUL SOLUTION

An investment in LED replacement lamps has paid off in

Berlin’s Hotel Adlon Kempinski has hosted its fair share

The Smithsonian American Art Museum is undertaking a

spades for the owners of the Fantasy Springs Casino in

of historical ﬁgures, including lighting innovator Thomas

complete relamping effort in its Modern and Contemporary

Palm Springs, Calif., with energy savings of 291,000 kWh in

Edison. Now it has undertaken an historic lighting upgrade,

Art Galleries, replacing all incandescent lamps with LED

just one year. A mix of LEDtronics replacement lamps and

replacing existing halogen lamps with GE Lighting LEDs

products from Sylvania. The ceiling height is approximately

replacement ﬁxtures were infused in the project, including

in 382 guest rooms—more than 7,000 lamps have been

16 ft., and the lamp types range from 15W PAR30 HIR

the use of LED T8-style tube lights as uplights to provide

replaced with MR16 7W LED alternatives. The hotel reports

lamps replacements to 8-degree AR111 halogen lamps

wall-washing illumination for the casino’s exteriors.

its energy costs have been cut by 80%.

replaced with 120V, 11W sources.

´ Visit www.ledtronics.com or Circle 279.

´ Visit www.gelighting.com or Circle 280.

´ Visit www.sylvania.com or Circle 281.

44 • 10.13 • ARCHITECTURAL SSL

www.architecturalssl.com

GE Lighting Solutions

Things are looking up See why heads are turning, visit www.gelightingsolutions.com/up

ÂŠ 2013 GE Lighting Solutions

Circle 18

LEDReplacements PRODUCTS

WHAT A LOVELY SUNSET

THREE-WAY INNOVATION

LED OPTION FOR CERAMIC METAL HALIDE-LAMPS

Ultra SE LED replacement lamps from Sylvania feature

Now three-way light ﬁxtures have an LED option with a

Bright for Life lamps, from LEDnovation, offer a direct-

“Sunset Effect,” which decreases the lamps’ color temperature

new Switch Lighting lamp offering three lighting levels

replacement option for PAR30 ceramic metal-halide (CMH)

as they are dimmed, mimicking the warmer lighting

(300 lm, 800 lm and 1,100 lm) that meet the equivalent of

lamps, with E26 medium bases. The actively cooled lamps

created by dimmed incandescent products. These new

30W, 60W and 75W incandescent lamps. The lamps use

require no external ballasted power source and retain

offerings warm from 3000K, down to 2000K, as they are

the patented LQD Cooling System, a liquid-silicone coolant.

brightness longer than traditional CMH products. They are

dimmed down to 10% of their initial output.

´ Visit www.switchlighting.com or Circle 283.

available with a medium or high color rendering index, in

´ Visit www.sylvania.com or Circle 282.

spot, narrow ﬂood and ﬂood beam angles. ´ Visit www.lednovation.com or Circle 284.

DO§ r§s§±rCH

MR16s the Early Pack Leader LEDs have been most successful in penetrat-

MR16s have lumen outputs less than or equal

ing the MR16 replacement market, a category

to 35W halogens. As of April 2013, the maximum

dominated by halogen incandescent technology.

lumen output of an LED MR16 listed in DOE’s LED

Distinguished by their small form factor and

Lighting Facts product list was 590 lumens, less

typical low-voltage operation, MR16s well-

than half of what’s possible with halogen prod-

suited for jewelry and other display applications

ucts, which are also substantially less expensive.

because of their high CRI and well-controlled,

Even with these shortcomings in current

high-intensity beams. The installed base of LED

products, the energy efﬁciency and long life of-

MR16 lamps in 2012 totaled almost 5 million,

fered by LEDs are helping to drive the technol-

or 10% of the 46 million of that year’s installed

ogy’s adoption. The 70 tBTU consumed by all

MR16 lamps.

lamps in this market in 2012 was 3.7 tBTU lower

Despite their success in this category, LEDs

than it otherwise would have been, thanks to

still face performance and equivalency challeng-

the 4.8 million LEDs now installed. An immediate

es. Halogen products range from 20W to 75W,

shift to an all-LED MR16 market would cut the 70

but recent CALiPER testing indicates most LED

tBTU total by 65 tBTU.

46 • 10.13 • ARCHITECTURAL SSL

MR16 REPLACEMENT PRODUCTS, PERCENTAGE-WISE, HAVE HAD THE GREATEST SUCCESS OF ALL LED REPLACEMENT PRODUCTS TO DATE.

www.architecturalssl.com

WHAT’S THE MOST OUTDATED TECHNOLOGY YOU USE EVERY DAY?

Answer: Thomas Edison’s light bulb – the technological innovation of the 1890s.

At Lighting Science, we think about lighting a little differently than most companies. We understand that light is much more than illumination. It affects sleep and health. And plants. Even wildlife.

At Lighting Science, we have engineered a way to make lighting better. Our LED lights not only save energy, last longer and cost less. But, they also can help you sleep, help you focus, and impact your life in surprising ways. Every day.

+ A19 75W Equivalent LED Lamp

LEDReplacements PRODUCTS

TOTALLLY TUBULAR

GET THE YELLOW OUT

EASY AS PIE

Two 18W, 4-ft. integral linear LED tube lamps—at 1800

A new addition to GE Lighting's premium Reveal lamp line

EYE Lighting has introduced the LEDioc lamp designed

lumens with a 4000K color temperature and 1900 lumens

brings LED technology to these premium lamps. Designed

for simple and easy ﬁeld retroﬁts from HID sources to LED

with a 5000K color temperature—are direct replacements

as replacements for standard A19 incandescent bulbs,

sources in post-top and pendant luminaires. The manufac-

for standard ﬂuorescent tubes. Now listed on the DesignLights

Reveal LED products are promised to eliminate the yellow

turer estimates there are more than 2 million post-top and

Consortium’s Qualiﬁed Product List, the ETI LED offerings

tones incandescent offerings can create.

acorn-style ﬁxtures in the United States, many requiring

provide a retroﬁt solution across a wide range of applications.

´ Visit www.gelighting.com or Circle 286.

annual bulb replacement.

´ Visit www.etiled.us or Circle 285.

´ Visit www.eyelighting.com or Circle 287.

DO§ r§s§±rCH

LED Directional Lamps More Efficacious The directional-lamp market, a category in

stalled stock of directional LEDs to 11.4 million

which Navigant researchers grouped R, BR and

units in 2012, from 100,000 in 2009. This means

PAR products, has long been dominated by incan-

LEDs now occupy approximately 4.6% of the

descent offerings, but recent energy efﬁciency

estimated 248 million U.S. directional sockets—a

standards are forcing buyers toward halogen

dramatic increase from 2010, when less than 1%

infrared, CFL and LED lamps. Price continues to

of U.S. sockets held directional LEDs.

be the biggest barrier to greater LED adoption

In total, directional lamps consumed 195 tBTU

among directional lamps. For example, while CFL

in 2012, a total that would have been approxi-

reﬂector prices averaged, roughly, $10 per lamp

mately 24 tBTU higher—had those 11.4 million

in 2012, LED alternatives averaged $46.

LEDs not been in place.

The researchers note that LEDs offer a num-

Underscoring just how much less energy LED

ber of performance beneﬁts over incumbent

products consume, the researchers estimate an

technologies, including efﬁcacies that average

immediate shift of all directional ﬁxtures to LED

57 lm/W and an inherently small form factor.

lamps would cut annual energy demand from

These advantages have helped boost the in-

these luminaires by 174 tBTU.

48 • 10.13 • ARCHITECTURAL SSL

www.architecturalssl.com

Circle 20

PERFORMANCE BEYOND THE BULB The TerraLUX Circular LED Engine breaks past the bulb and provides beautiful, efficicent light in 8” - 24” pendant and drum fixtures. ENERGY STAR® CSD Certified with efficacy as high as 98 lm/watt. Installation couldn’t be more simple with line-voltage connection and a threaded-rod hole. Integrated LEDSense® Technology ensures long, 60,000 hour life, providing stunning performance for years.

Discover a smarter lighting solution. Visit www.TerraLUXIllumination.com/Circular to learn more.

LEDReplacements PRODUCTS

BETTER PAR FOR THE COURSE

BALLAST-READY LED

EASY TO INSTALL

LED PAR38-style ﬂoodlight bulbs are designed for com-

These Seesmart 15W LED Tube Lights serve as direct

The RV Series retroﬁt commercial LED downlight from

mercial applications, providing a high-lumen, wide beam of

replacements for 25W–32W fluorescent tube lamps. They

Lithnonia can be installed into existing mounting pans in

light in an omni-directional pattern. The new lamp series

are powered by the fixture’s existing ballast, using their

5 minutes. It’s unique hardware retains and centers the

from LEDtronics offers 3000K and 5000K color-temperature

integral medium bi-pin mounting and compatible with

ﬁxture into existing mounting pans allowing replacement

options, with a color rendering index of 80. While drawing only

typical electronic instant-start ballasts and battery packs.

of 8-in. apertures. The retoﬁt product uses common line

18W, they are designed to replace halogen lamps of up to 90W.

´ Visit www.seesmartled.com or Circle 289.

voltage dimmers, allowing dimming without the need to

´ Visit www.ledtronics.com or Circle 288.

pull additional wires to the ﬁxture. ´ Visit www.lithonia.com or Circle 290.

DO§ r§s§±rCH

Tubes No, Integrated Troffers, Yes Linear tube-style replacement lamps have

than traditional ﬂuorescents, while matching

reached parity with traditional ﬂuorescents

them in lighting quality. The directionality inher-

in efﬁcacy, according to the DOE report, but

ent in LED technology also means less light loss

researchers cited a March 2013 CALiPER ex-

vs. omnidirectional ﬂuorescent tubes. However

ploratory study that found direct-replacement

color inconsistencies and ﬂicker in dimmed

lamps have not yet been able to signiﬁcantly

conditions can be a problem with some products.

outperform ﬂuorescents. As a result, luminaires

The Navigant researchers noted that, from 2010

retroﬁtted with LED lamps might not offer

to 2012, the number of installed LED troffers

the guaranteed savings compared to the same

grew to 700,000 from only 40,000 in 2010. The

ﬁxtures equipped with high-performance ﬂuo-

2012 ﬁgure, however, represents a tiny fraction

rescent lamps with dimming ballasts. However,

of the U.S. total of 957 million such ﬁxtures.

the same study found that troffer-style ﬁxtures

However, the LED ﬁxtures installed in 2012

designed speciﬁcally for LED sources are ready

provided 0.9 tBTU in energy savings. A wholesale

to compete with ﬂuorescent luminaires. In fact,

switch to troffer-style LEDs could result in an

such LED troffers now can offer better efﬁcacy

additional 1,146 tBTU savings.

50 • 10.13 • ARCHITECTURAL SSL

LINEAR LED FIXTURES INSTALLED IN 2012 PROVIDED 0.9 TBTU IN ENERGY SAVINGS. A WHOLESALE SWITCH TO LEDS WOULD RESULT IN AN ADDITIONAL 1,146 TBTU SAVINGS

www.architecturalssl.com

Pillar

Aiden T-Wash

LED…on track to illuminating the future. Nspec, a division of Nora Lighting, features a wide array of LED track fixtures for architectural

Cori

Flex Beam

and commercial installations. The T-Wash features an architecturally styled die-cast aluminum housing that includes the LED module, driver, specular reflector and frosted lens for even light distribution. T-Wash is offered in two lengths: a 12-inch model using 33W with 2100 lumens and a 24-inch model using 66W with 4200 lumens. Both fixtures offer high CRI in either 3000K or 4000K. Available in white, black or silver finish. With a range of styles and performance features, Nspec has the right LED track fixture for your needs.

800.686.6672

w w w. n o r a l i g h t i n g . c o m

Circle 21

Revo

LEDReplacements ±PPLiC±TiO∑S

BY THE NUMBERS

FIT FOR A KING

SUPER LED INSTALLATION

For photographer Chris Jordan's “Running the Numbers”

At Hungary's Esterhaza Palace, where Austrian composer

Seattle's EMP—the Experience Music Project—is most

exhibit, held at the Jordan Schnitzer Museum of Art in

Joseph Haydn ﬁrst presented many of his classical compo-

known for it's rock music memorabilia. But the museum

Eugene, Ore., the gallery's original track head 90W PAR 38

sitions, the baroque landmark's historic chandeliers were

recently opened a new exhibit dedicated to science ﬁction

130V narrow ﬂood lamps, used for accent lighting, were

among the incandescent and halogen lamps retroﬁtted

and pop culture. To light the artifacts, the museum used

replaced with Cree LRP38 lamps. The 12W LED PAR38

with LED products from Verbatim. Speciﬁcally, more than

Toshiba's PAR 20 and 30 LED sources. In total, more than

lamps feature a color temperature of 2700K and a 20°

1200 candle bulbs were replaced, as were more than 200

1500 lamps were installed throught the rest of the

beam spread.

droplet lamps with LED sources.

museum for their energy efficiency, lift time and color.

´ Visit www.cree.com or Circle 291.

´ Visit www.verbatimlighting.com or Circle 292.

´ Visit www.toshiba.com/lighting or Circle 293.

DO§ r§s§±rCH

Outlook Good In their conclusion, the report’s authors, Mary

that 82 incandescent and halogen lamps were

Yamada and Dan Chwastyk, emphasized the

replaced with LED MR16 and PAR30 lamps. As a

tremendous growth rate LED lighting technology

result, the museum is expected to save $28,000

has enjoyed over the past decade, capturing

over 10 years—despite the fact that the research-

market share in several general illumination

ers say that the LED lamps cost nearly 10 times

applications from traditional light sources.

the conventional lamps they replaced.

The Navigant consultants noted LED lamps

More importantly, LED substitutions like these

and luminaires do have higher upfront costs, but

are taking place without the need for subsidies

are quick to add this is often offset by reduced

or coupon schemes. “Because LEDs can make

electricity and maintenance over the products’

ﬁnancial sense and have the ability to offer

extended lifetimes.

customers a better quality, more reliable lighting

The pair cited a recent DOE GATEWAY demon-

THE SMITHSONIAN'S ART MUSEUM IS EXPECTED TO SAVE $28,000 OVER THE NEXT DECADE THANKS TO AN LED RETROFIT.

service," said the consultants.•

stration project as an example—the Smithsonian American Art Museum in Washington, D.C. (see page 44). There, the consulants pointed out

52 • 10.13 • ARCHITECTURAL SSL

www.architecturalssl.com

Circle 22

ArcLume STYLE + PERFORMANCE

ÌÀ `ÕV }Ê ÀV Õ i]ÊÌ iÊvÕ ÊVÕÌ vvÊ>ÀV ÌiVÌÕÀ> Ê ÊÜ> «>V ÊLÞÊ- >À° 7 Ì Ê ÌÃÊÃ ii Êv À ]Ê>ÊV ViÊ vÊÌ ÀiiÊ } ÌÊ iÛi Ã]Ê> `ÊLÀ > Ì]Ê } Ê«iÀv À > ViÊV « L >À`Ê Ê } ÌÊi } iÃ]Ê ÌÃÊÕ µÕiÊV Ìi « À>ÀÞÊ`iÃ } ÊÜ Êi i}> Ì ÞÊ Õ >ÌiÊÞ ÕÀÊ ÕÌ` ÀÊÃ«>ViÃ°Ê ÀV Õ iÊ ÊUncompromising design and performance. ÇääÊ,> >Ê Ûi ÕiÊUÊ* >`i « >]Ê*i ÃÞ Û> >Ê£ £ÓäÊUÊnää®ÊxÓÎ ÎÈäÓÊUÊÜÜÜ°Ã >À°V

Circle 23

ArcLume is DesignLights™ Consortium Qualiﬁed

ÀÊ ÀiÊ v À >Ì ]ÊÛ Ã ÌÊÜÜÜ°Ã >À°V

By Kevin Willmorth, editor

Mitigation of Flicker in AC Powered LED Light Sources Extracted from a study for Active Semi by Lumenique, LLC comparing AC LED performance

Flicker modulation frequencies of <65Hz are generally considered

Two New Approaches for Mitigating Flicker

unacceptable in lighting, as it may cause physical reaction in the form

In an effort to improve Flicker Percentage and Flicker Index performance,

of seizure or photo-induced migraine. Frequencies between 65Hz to

Active Semi, Allen, Texas, and Seoul Semiconductor, Ansan-city, Dan-

100Hz are considered problematic, with studies indicating a range of

won-gu, Korea, have taken two unique approaches to mitigating the

negative visual performance. Sensitivity to frequencies of >100Hz is

short duty cycle and deep modulation of LEDs connected to AC circuits.

dependent on the combined factors of duty cycle (ﬂicker index) and modulation depth (ﬂicker percentage). The lower the modulation

Basic AC LED array

depth, and greater the duty cycle, the less critical frequency becomes.

Generic reference LED array connecting LED strings

At frequencies >2KHz, the human visual system is unable to

in opposition to generate light on both sides of AC sine

distinguish modulation.

wave at 120Hz frequency. The light emission wave

Alternating current used in building systems reverses polarity with

form indicated clearly shows the source modulation

each cycle, at a frequency of 50Hz or 60Hz. Since LEDs can only pass

as both severe and deep. This produces the most noticeable form of

current in one direction, connection to AC power sources will generate

ﬂicker, with sharp, high intensity peaks surrounded by deep valleys

a ﬂicker at the power source frequency (50Hz or 60Hz), which is

with little light present. This is reﬂected in this arrangements 99.3

unacceptable for general illumination. The application of simple bridge

Flicker Percentage and 0.4498 Flicker Index. For most viewers this

rectiﬁers, or circuiting strings of LEDs in opposing polarity, produces

would be readily apparent, if not annoying.

modulation frequencies twice that of the power source (100Hz or 120Hz), delivering a ﬂicker frequency within acceptable limits for

Seoul Semiconductor Acrich2 120VAC LED

generally safe lighting.

This product utilizes a switching semiconductor to

Unlike arc or ﬁlament-based light sources, LEDs emit no latent light from arc stream collapse, phosphor or ﬁlament after-glow. Further, a minimum threshold voltage is required to initiate electron activity for an

activate LEDs in steps synchronized with 60Hz AC sine wave to create 120Hz output. The Acrich2 product is delivered as a module with LEDs and circuiting built

LED to emit light. These factors result in an exaggeration of modulation,

in. LEDs are controlled through a semiconductor “driver” signiﬁcantly

presenting more severe ﬂicker at a given source frequency than

improving modulation depth and duty cycle. The greater time spent in

conventional light sources.

the “on” cycle results in a Flicker Percentage of 53.79 and Flicker Index of 0.1403, both signiﬁcantly improvements over the bare LED approach. Active Semi Active Direct Drive LED Controller

TABLE 1. Flicker Characteristics of Line Voltage AC LED Designs

Array includes capacitor for valley ﬁll in addition to Source

semiconductor chip to distribute current through LED

Flicker Percentage

Flicker Index

Flicker Appearance*

Incandescent

6.26

0.0194

Excellent

T12 Magnetic

35.1

0.0897

Good

DC LED Source

2.84

0.0037

Excellent

Rectiﬁed AC

99.31

0.4498

Poor

application in any form or shape of LED module desired. The application

Seoul Semi Acrich2

53.79

0.1403

Good

of a larger number of LEDs activated by the semi-conductor controller

Active Semi Module

8.75

0.0287

Very Good

*Subjective ratings: Excellent, No visible flicker concern. | Very Good, Flicker may be visible only to the most sensitive. | Good, Minimal flicker appearance apparent under limited conditions. | Poor, Flicker very likely to be noticed by a significant percentage of observers.

54 • 10.13 • ARCHITECTURAL SSL

strings in response to AC sine wave. The Active Semi LED controllers are provided separate of LED arrays, for integration into OEM designs and arrays, providing ﬂexibility for

and addition of capacitors significantly reduces “off” cycle time and valley depth, delvering a significant improvement in flicker performance, with a Flicker Percentage of just 8.75, and Flicker Index of 0.0287.•

www.architecturalssl.com

M Mariela Buendia-Corrochano B LEED AP ID+C L Principal Gensler

“It is amazing how the market has changed — clients are asking for sustainable design, and as a LEED professional, I’m able to speak intelligently about sustainable design strategies.” Learn how Mariela’s LEED AP Interior Design + Construction credential sets her apart at www.gbci.org/Mariela.

By Kevin Willmorth, editor

The Wide Range of LED Packages Supporting Design Flexibility Efficiently

As LED technology evolves, individual LED light output has increased,

are delivering higher lumen output for each die, which has created the

and application needs have changed. Where high-intensity point

opportunity for shrinking individual die while retaining high efﬁcacy

sources were an area of great concern early on, the desire to create

(lumens per watt). Since not all forms of luminaires beneﬁt from single

larger luminous surfaces has emerged. This has created a need for

point sources with very high brightness—such as linear products, or

lower power LED sources with the same efﬁcacy as high power devices

large luminous surfaces—a need has grown for lower power packages

with greater intensity. In response to this, LED source packages are

delivering lower individual lumen output for use in shaped arrays to

now available in a growing number of conﬁgurations.

suit speciﬁc product designs. Meanwhile, the need for higher power

Within each device or package are one or more LED die, the single

LED arrays with high lumen output has grown as well.

semiconductor chip that emits light energy. Each single die creates a voltage drop, or forward voltage (Vf) of roughly 2.8 to 3 volts. Multiple die can be connected in series or circuit arrays that split voltage and/ or current according to their design. For example, 10 die in series will produce 30Vf. If connected in parallel, current is split between the die or die strings. For example, 500 mA (milli-Amps – mA = 1/1,000 of an

With lumen densities as high as 10,000 lumens, self contained, and easily replaceable, chip-on-board arrays sacriﬁce a little efﬁciency to produce high output in a small space—often within an area of an inch or less.

Amp), applied to a circuit with two strings of ten die each produces 30Vf, while each string shares the 500mA to operate at 250mA. Individual

Chip-on-Board arrays are a form of LED with a large luminous area.

LED die also come in different forms, from small to large. In small form,

Within these packages are several individual LEDs connected in series

maximum current for each die ranges from 30mA to 500mA. In larger

parallel circuits to generate high lumen density from a single light

forms, current handling can be as high as several Amps. Manipulating

source. With lumen densities as high as 10,000 lumens, within an area

the circuiting of LEDs is how the voltage and current characteristics of

of an inch or less, these sources sacriﬁce a little efﬁciency to produce

devices and lighting products are developed.

high output in a small space. These devices are also self contained,

LED devices include a surrounding container. Within this are the

requiring only connections to power, with no additional need for circuit

LED die, wire connections, a thermal pad—conducting heat from the

board. This creates a light source that can be installed with screws or a

die to an external thermal conductor; encapsulation—for protection of

holder, easily replaced for maintenance, with no socket involved.

the internal components; and for white LEDs, a phosphor to convert blue light of the LED die to white light. LED packages are available in simple plastic or ceramic single forms

Modern LED technology allows product designers to choose how light is distributed, using low, mid, or high power LEDs of a vast range of capabilities, and still maintain lumen efﬁcacies over 110 lm/W. From

that are generally very small in size, intended to operate at low current

single die low-power packages to large-array chip-on-board arrays

levels (300mA or less). Larger packages include multiple die or single

delivering soft light from a compact source, to intense high-power

large form die arrangements.

LEDs, the range of available LED forms is expanding rapidly to suit

In early phases of LED development, available packages were low-

lighting product applications. Further, arranging these packages in

power devices, often in the form of small bulb shapes designed for

series, parallel, or series-parallel circuiting, supports design of systems

instrumentation illumination. Early high-power LEDs for illumination

that operate on speciﬁc power sources, within a desired voltage level,

were of modest output, requiring several to be used in a product to

or at a speciﬁc current level, to optimize luminaire efﬁciency, optical

attain a desired lumen output. As the technology has improved, LEDs

performance, aesthetic appearance and production cost.•

56 • 10.13 • ARCHITECTURAL SSL

www.architecturalssl.com

AIA Continuing Education

“ Enjoyable and very clearly

instructional.” - Travis, 6/24/2012

“This was an excellent course- one of the

best I have taken. Would like more information on window details and details at base of building” - Ellen, 6/1/2012

fabulous

“This was a course! Information is matter of fact explained and easy to retain. By far the best one hour course I have taken” - Janis, 4/6/2012

add to your product library…good course”

“

- Devin, 1/23/2012

Informative and easy to understand presentation.”

“

- Jennifer, 6/28/2012

These are just a handful of the public comments you can see under every course on TCA. And surveys continue to show that the TCA user experience is the best in the business. Visit, explore, register and take a course – for free – today!

FEATURED COURSES

Optimizing Performance in Commercial Fenestration

Ventilated Wall Systems: Porcelain Stoneware Cladding Solution for Energy Efﬁcient Buildings

Three Innovations Changing the Face and Function of Fabric Architecture

TheContinuingArchitect.com

Product Introductions

A Swivel That’s Twice As Nice The Nessen Lighting Pensum table and task light features a double-swivel design, similar to the classic articulating “foldable” wall sconce—the tubular LED light head rotates 350°, while the vertical light arm swivels 160° in a left/right arc. The clean-lined ﬁxture is constructed of solid brass, with a choice of bronze, chrome or satin-nickel ﬁnish. ´ Visit www.nessenlighting.com or Circle 294.

Modern LED techology allows product designers to choose how light is distributed, using low, mid or high power LEDs.

1 Reef-er Madness The Coral Reef Light, by Squarewalnut, is a ﬂoor ﬁxture comprised of three overlapping, rotating lighting layers—each layer can be activated independently by rotating it side to side. The individual “petals” each feature clusters of 96 LEDs, producing warm 3000K illumination. ´ Visit www.squarewalnut.com or Circle 296.

2 Top-Tier Color Rendering Universal Lighting Technologies’ Everline High CRI LED Modules feature a CRI of 95 and also deliver efficacy of up to 90 lm/W. The modules’ drivers enable control capabilities for track and downlight luminaires ranging from 15W to 120W. ´ Visit www.unvlt.com or Circle 297.

3 Gain an Extra Angle The Nora Lighting Aiden LED track head can be specified with either a 19-degree spot or 38-degree flood beam angle, for use in highlighting merchandise, artwork and architectural features. The fixture can be adjusted 350 degrees horizontally and 90 degrees vertically, and comes in 3000K or 4000K. ´ Visit www.noralighting.com or Circle 298.

58 • 10.13 • ARCHITECTURAL SSL

www.architecturalssl.com

Product Introductions

High-Efficacy Performance The Bridgelux Vero series LED arrays have begun shipping with a nominal performance efficacy of 120 lumens per watt (110 lumens per watt minimum), providing an energy savings of 11% over the product’s prior generation. The arrays also now are available with a 2SDCM MacAdam option for more precise—and uniform—color control. ´ Visit www.bridgelux.com or Circle 295.

In retail settings, careful consideration must be given to placement, color temperature and ﬁxture aesthetic.

4 Retro-Industrial Option DesignLights Consortium-approved, Retro Industrial LED Low-Bay ﬁxtures by YS Lighting pair highefficiency LEDs with a vintage appearance and are designed for a range of high-ceilinged applications. ´ Visit www.yslighting.com or Circle 299.

5 Industrial-Grade Performance Kemlux III LED Series ﬁxtures, designed by Hubbell, are able to stand up to the rigors posed by corrosive chemical, petrochemical, marine, and powergeneration settings. A modular design allows for six mounting options for the luminaires, which function at ambient temperatures ranging from -40°C to 40°C. ´ Visit www.hubbellindustrial.com or Circle 300.

6 Simple Geometry Lucifer Lighting’s aptly named Cylinder LED Luminaire features a sleek die-cast aluminum body and a power supply integrated into its mounting base. The tapered aperture helps increase lumen efficiency and tool-less adjustment enables up to a 45° tilt and 361° swivel rotation, available in a range of color temperatures, packages and beam optics. ´ Visit www.luciferlighting.com or Circle 301.

www.architecturalssl.com

ARCHITECTURAL SSL • 10.13 • 59

Product Introductions

Engines and Drivers for Brighter Light Light engines provide a SELV-compliant solution for linear, square and circular luminaires in commercial applications in color temperatures of 3000K, 3500K and 4000K. CoolLED drivers from Harvard Engineering work alongside these light engines providing added control, including Phase or 0-10V analog dimming. ´ Visit www.harvardeng.com or Circle 302.

When it comes to area lighting, LEDs offer longer life, reduced maintenance, higher color quality and better controllability.

1 Downtown Appeal Symmetrical proportions and a gently arching crown characterize the Sentry Lighting SDAS-LED Downtown luminaire. The ﬁxtures deliver more than 9300 lumens, with an efficacy rating of 93 lm/W and are constructed of cast aluminum. ´ Visit www.sentrylighting.com or Circle 304.

2 Even More Packages The Indy line of recessed luminaires from Juno Lighting now includes eight lumen packages, ranging from 600 lumens to 3600 lumens, with efficacies up to 84 lm/W. The ﬁxtures are designed for applications with ceiling heights ranging from 8 ft. to 50 ft. ´ Visit www.junolightinggroup.com or Circle 305.

3 Park It The VG Series of parking garage fixtures from Cree delivers energy savings of up to 73%, vs.comparable metal halide fixtures. A composite optical system combining an internal reflector and prismatic lens produces low-glare illumination, with up to 10% uplight to reduce the “cave effect” that can commonly occur in garage settings. ´ Visit www.cree.com or Circle 306.

60 • 10.13 • ARCHITECTURAL SSL

www.architecturalssl.com

Product Introductions

Is it Plastic? While the fixtures in Leucos’ new Wimpy family of luminaires may look like they’re constructed of malleable plastic, they’re actually made from soft layers of white, satin-finished blown glass. Available as wall, ceiling and table fixtures, the units can be specified for LED or incandescent lamping, with LED versions providing illumination at a color temperature of 3000K. ´ Visit www.leucosusa.com or Circle 303.

Color consistency and color balancing with natural light, is critical in creating reading enviroments in libraries and like spaces.

at the Speed of Light The industry’s most comprehensive and accurate lighting database with over 5,500 Lighting Manufacturers and 11,000 Product Categories. Lightsearch is a FREE online resource with query options designed by professional specifiers. It works the way you think.

±DV§RTiS§R

Δ§BSiT§

AMERLUX B-K LIGHTING BODINE / PHILIPS CREE EYE LIGHTING GE LIGHTING SOLUTIONS INTENSE LIGHTING IOTA ENGINEERING KIM LIGHTING / HUBBELL LED SPECIFIER SUMMIT LIGHTING QUOTIENT LIGHTING SCIENCE GROUP LIGHTSEARCH LUMILEDS / PHILIPS MANNING LIGHTING METAL COATERS NICHIA NORA LIGHTING RAB LIGHTING SEESMART LED SESCO LIGHTING SIMKAR SOLID STATE LUMINAIRES STERNBERG VINTAGE LIGHTING TERRALUX THE CONTINUING ARCHITECT USGBC VISIONAIRE LIGHTING VISTA ARCHITECTURAL LIGHTING

www.amerlux.com www.bklighting.com www.bodine.com www.cree.com www.eyelighting.com www.gelightingsolutions.com www.intenselighting.com www.iotaengineering.com www.kimlighting.com www.ledspeciﬁersummit.com www.thelightingquotient.com www.lsgc.com www.lightsearch.com www.philipslumileds.com www.manningltg.com www.metalcoaters.com www.nichia.com www.noralighting.com www.rabled.com www.seesmartled.com www.sescolighting.com www.simkar.com www.solidstateluminaires.com www.sternberglighting.com www.terralux.com www.thecontinuingarchitect.com www.usgbc.org www.visionairelighting.com www.vistapro.com

CiRCL§ ∑UμB§R

P±g§ ∑UμB§R

Circle 14 Circle 16 Circle 17 Circle 11 Circle 12 Circle 18 Circle 07 Circle 25 Circle 27 — Circle 13 Circle 19 — Circle 02 Circle 09 Circle 05 Circle 15 Circle 21, 24 Circle 01 Circle 23 Circle 26 Circle 22 Circle 04, 06 Circle 08 Circle 20 — — Circle 03 Circle 10

37 41 41 15 21 45 11 62 BC IBC 34 47 61 04 13 09 38 51, 62 IFC, 01 53 63 53 08, 10 12 49 57 55 06 14

LETTERS TO THE EDITOR: “Breaking Through the Glass Ceiling” says it all—articles from SSL should be required reading for everyone. While LEDs lead the way, until all makes are interchangeable, there is still an impasse to progress. The exciting OLEDs will make the final break through. As a former commercial electrical contractor, the intractability of factories to make small custom orders was a constant deterrent to the best design. This logjam should be opened, because too many orders are lost under this rigidity. Gersil N. Kay, IESNA, AIA/HRC Conservation Ltg. Int’ Ltd., and

LED Sapphire 4", 6" & 8" High Lumen Commercial Downlights 850, 1250, 2000, 3000 and 4000 lumen packages 2700, 3000, 3500 and 4000K temperatures

Building Conservation Intl. a division of Nora Lighting Te l 8 0 0 . 6 8 6 . 6 6 7 2

62 • 10.13 • ARCHITECTURAL SSL

noralighting.com

Circle 24

Circle 25

SESCO lighting

REPRESENTS THE MOST AWESOME GROUPING OF LIGHTING MANUFACTURERS EVER ASSEMBLED WITHIN OUR INDUSTRY! x Founded in 1967 – 170 employees, Offices in Florida, Georgia, Tennessee, the Caribbean and more x Higher pay – Unlimited at the top end x The most advanced training in the industry x Full blown excellent medical insurance x ESOP retirement program – 100% owned by our employees

If you’re tired of the snow, sleet, hail, fires and tornadoes and have experience selling lighting while calling on specifiers and/or electrical contractors, please contact: Kim Daniels, PHR kdaniels@sescolighting.com 407.629.6100 407.765.0907 Circle 26

SSLObserved:

By Kevin Willmorth

The Dizzy Loop from bicycles. I personally hoped to see more of

Design is more evolutionary than revolutionary. Therefore, if SSL proponents want to see this industry grow, they’ve got to pick up the pace.

To take this further, in decision-making

the dawn of ﬂight, where, because so little was

comparisons, if a design based on an optimized

known, designers tried anything. This frequently

use of a conventional technology is compared to

ended in Darwinistic form—where survival of the

a simple swap out of one source for another, the

designer was a prerequisite to forward successful

results are frequently ﬂawed. To illustrate: one

advancements, while bad ones met a sudden,

could make the case for comparing a lighting

tragic end. Sadly, there is none of this dynamic

design using HID lamps with color ﬁlters to a

in lighting. Bad design has just as much chance

white LED ﬂood light with color ﬁlters. This

Question: Is design independent or dependent on

of market success as good—and worse—those

ignores the availability of colored LEDs and the

resources available? In artistic ideology, design

responsible live on.

advantages these have over the old ﬁlter-based

should not be bound by physical constraints. In

In lighting application, there has always been

paradigm. The fairest evaluation is realized

pragmatic terms, design, by its very nature, is

a strong connection between design and product

by comparing optimized lighting solutions,

constrained by availability of raw materials. If

availability. This creates a circular relationship.

designed around the best use of their respective

this were not the case, we would all be traveling

When a product is found useful, manufacturers

technologies. But how can this be accomplished

in light-speed hot rods, communicating on free

see sales success as a reason to offer more of the

if manufacturers simply install LEDs into con-

ethereal transducer brain-to-brain communicators

same, which then spawns knockoffs. As availability

ventional ﬁxture designs? Perhaps an equalizing

from our homes, which, by the way, will be

expands, more designers use it, and the circle

factor is that few lighting applications actually

insulated with inﬁnitely sustainable miracalite,

grows. However, our current evolved solutions

optimize the use of any technology, so comparison

structurally held together by cheap “unobtanium.”

are founded on glass bulb lamps (incandescent,

of two ﬂawed systems is fair, in a twisted sense.

Conversely, design pursued with no attempt to

ﬂuorescent and HID). Now that we have LEDs,

poke holes in the comfortable, but conventional

two things are subject to change: 1) Approach to

Adoption of technology is done in grinding steps.

fabric, leads nowhere. This means design is the

lighting application to take advantage of the new

“Revolutionary” is a marketing term—it has more

work of mutating evolution, twisting, stretching

capabilities; and 2) product available to execute

bang-pop; evokes imagery of warriors storming

and bending what is known and available into

those designs, using the new technology to its

tyrant’s gates; innovators smashing status quos

new iterations of things we call “new.”

best advantage. This is a classic chicken-egg

with hammers and burning paradigms with

paradox. If designers continue to rely on

torches. In the real world, it’s a progression of

inventory of novel resources for product and

conventional product conﬁgurations, simply

steps that by consensus, over time, eventually

lighting designers alike. This suggests the

redressed with LEDs, manufacturers are motivated

re-shapes the landscape around us. We’re in the

impact on the next generation of lighting will be

to deliver that, rather than take risks in offering

thick of this now. Perhaps being aware of it can

profound. However, innovation is incapable of

new products that more effectively deliver the

increase our stride, quickening the pace a bit.•

spontaneous combustion. We must ﬁrst saunter

value being created by the technology. Without

along in baby steps through application of

new product, designers are unable to explore

solid-state in known forms, like the ubiquitous

new application approaches. Without new

Edison socket bulb, tube lamps, rectangular

market demand from designers seeking new

ABOUT THE AUTHOR:

troffers, down lights, shoe box and cobra head

solutions, manufacturers continue to perpetuate

Kevin Willmorth, a lighting expert and ﬁxture designer,

pole lights. This is no different than the earliest

old paradigms. It’s a dizzy loop that slows the

has been instrumental in helping create a vision and

cars resembling carriages, or motorcycles made

rate of innovation.

mission statement for Architectural SSL.

Solid-state lighting brings to us a signiﬁcant

64 • 10.13 • ARCHITECTURAL SSL

This is why design is evolutionary by nature.

www.architecturalssl.com

NOVEMBER 21, 2013 Sheraton Chicago Hotel & Towers | Chicago, IL Produced by

the creators of LightShow West

NEW! O One-day ne-day Immersio Immersion ion iin LED Lighting Educ Educa atio tion and So SSolutions olutions Education … for speciﬁers of commercial, mercial, cial, al,l, arc ar architectural architect archit rchite andd ddecorative LED lighting ligh ighting products. p pr

Featuring: • 10 seminars by industry experts • Solutions from 75+ top manufacturers - via easily accessible tabletop exhibits • Hands-on product demonstrations • Peer-to-peer networking and free cocktail reception • Plus, opportunity to earn various CEUs!

One day of infform mattioon annd knowleedge that can be applied imm mediaatelly to proojeectss, prooduct selection and makingg the riighht ligghtiing deccisionns. Just $195 for the full conference or FREE Exhibit Hall admission. Follow Us:

Visit ledspeciﬁersummit.com

LEDSpeciﬁerSummit LEDsummit LED Speciﬁer Summit group

for show details and registration.

Title Media Sponsors:

Media Sponsors:

ARCHITECTURAL LIGHTING

Supporting Sponsors:

速

Wireless Adjustable Aiming & Dimming. This is Kim Lighting.

http://www.kimlighting.com/ltv8/ The Bluetooth word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of such marks by Kim Lighting is under license.

Circle 27