Duo

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the positive effects of light


DUO is a revolutionary range of luminaires from Whitecroft Lighting which has been designed to have a positive effect...

….On the Space Choosing the right luminaire for any space is a subjective process where appearance is

…On the People

paramount. DUO has been

DUO has been designed to

designed to integrate and

not only maximise the visual

harmonise with the

aspects of the lit

aesthetics of a modern office

environment, but also

environment and provide

address our emotional and

soft, even illumination of all

biological requirements. In

Because DUO has a positive

surfaces.

doing this it creates a more

effect on both the space and

motivating and comfortable

the staff who work within

workplace.

that space, businesses can

…On the Business

reap the benefits of a more effective workforce.

DUO represents a significant step forward in luminaire design. It combines flexibility and performance whilst recognising the aesthetic impact it has on it’s surroundings.

Martin Valentine Lighting Group Director Faber Maunsell Ltd



DUO

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A P O S I T I V E E F F E C T O N T H E S PA C E

Creating a Pure Aesthetic Simplicity of Form DUO’s simple form is crucial

Effective Room Surface Illumination

A Choice of Design Aesthetic There are two distinct

in achieving aesthetic

DUO uses complex optical

configurations in the DUO

integration. The modern

control technologies to

range, centre and perimeter

office is filled with geometric

deliver bright, diffuse light to

optic versions.

forms and is essentially

both walls and ceiling.

simple in design. Why use a

Furthermore, its unique

luminaire which introduces

design introduces controlled

visual confusion into this

brightness zones directly into

space?

the ceiling plane. This

A Clean Ceiling Line

delivers a vibrant lit

The centre optic has an aesthetic similar to traditional luminaires, with the main lighting optic running along the central axis of the luminaire.

workplace and enhances the Research amongst leading

room surfaces in excess of

architects and specifiers has

those demanded by LG7.

The side optic version takes a more radical approach and

shown a strong desire for

positions two optics at

clean, undisturbed ceiling

opposing edges of the

lines. DUO meets this

luminaire, not only improving

requirement by being both

efficiency but giving a unique

fully recessed and of

visual appearance.

geometric form. Its unique dual optic design adds brightness to the space and integrates well into the ceiling plane.

The combination of optical technology and simple design mean that DUO transforms the visual appearance of the workplace, creating the right light for the space.

DUO creates a pure aesthetic in harmony with other key building elements, ensuring total integration within the space


DUO

-

A POSITIVE EFFECT ON THE PEOPLE

Achieving Exceptional Lighting Quality How We Respond to Light

The Visual Response

The Emotional Response

The Biological Response

There are three ways in

Our primary response to the

Our second response is

Our final response is

which we respond to light,

lit environment is visual. We

more subjective. A space

subconscious. Our body

and each of these has a part

assess whether the

may comply with all of our

responds to changes in light,

to play in creating a lit

environment is lit well

visual needs but emotionally

we are naturally conditioned

environment which will

enough to perform the

we also respond to the

to a daylight environment.

engender a feeling of well

required task by responding

appearance of the

Brightly lit spaces with

being in its users. These are

to levels of illuminance, glare

environment. A bright, well

daylight balanced lamps in

Visual, Emotional and

and contrast. These three

integrated and vibrant interior

luminaires can have a

Biological.

elements determine the

is motivating and makes us

dramatic effect on the

visual quality of the lit

feel good about the space

surroundings, making them

environment.

we work in.

feel much more natural and comfortable. Current academic research shows that we are stimulated by changes in light intensity and colour, both having a positive effect on our alertness and general well

Visual

Emotional Well Being

being. DUO is available with integrated bio-dynamic lighting which changes colour temperature and intensity during the working day to

Biological

stimulate our biological response to light.

DUO achieves an exceptional quality of illumination providing a comfortable, motivating workplace




-

DUO

A POSITIVE EFFECT ON THE BUSINESS

Delivering Proven Benefits 1:5:200

Increasing Productivity The report introduces the

Given the value of the

an exceptional quality of light

1:5:200 rule which

investment in staff, any

and enhances the working

demonstrates that for every

increase in productivity is a

Because DUO delivers both

environment, businesses can

pound spent on the

benefit that more than

benefit from the outcomes of

construction of a building,

outweighs the initial

these environmental

five pounds is spent on

investment.

enhancements.

maintaining and operating

An analysis titled ‘The Long Term Costs of Owning and Using Buildings’ by The Royal

the building and two hundred pounds on the staff who occupy the building.

Academy of Engineering is

The rewards from improving the working environment and creating a more motivating workplace by choosing DUO can be reaped in many ways.

widely quoted by the UK

A well lit workplace can lead

construction industry.

to lower absenteeism, a more stable workforce and a

The Long Term Costs of Owning and Using Buildings

marked increase in productivity.

£1

Construction Cost

£5

Facilities Management

£200 Staff Expenditure

DUO delivers an effective lit environment promoting well being and enhancing productivity in the workplace

Sustainability A truly sustainable lighting

combining low energy lamps

We are committed to

solution has to consider more

with sophisticated optical

reducing the impact of

than just the luminaire.

technology. When DUO is

lighting on the environment

Energy saving controls, gear

combined with our lighting

and have developed our

and lamp type all contribute

control systems we can

environmental policies in

towards the overall cost

further reduce life cycle

conjunction with the Carbon

throughout a scheme’s life.

cost which benefit both

Trust.

DUO is designed to maximise light output by

the environment and the end user.



A HOLISTIC APPROACH TO OFFICE LIGHTING

A successful lighting scheme

The Seven Key Criteria

must deliver on many fronts. It must not only consider the requirements defined in AESTHETIC INTEGRATION

lighting standards, but balance these with both through life costs and the qualitative aspects of lighting

CONTROLLED CONTRAST

ENERGY CONSUMPTION

quality and architectural integration. Assessing Success By using a spider diagram such as the one pictured opposite, a graphic representation of the

ROOM SURFACE ILLUMINATION

MAINTENANCE COST

performance of a scheme can be obtained. This simple tool allows the lighting designer to compare and INSTALLED COST

optimise different solutions at the earliest design stage. These seven key criteria have driven the development of DUO to create the optimum lighting solution for any workplace.

AESTHETIC INTEGRATION is a

ENERGY CONSUMPTION

subjective judgement as to

quantifies the amount of

how well the lighting

energy, and its associated

integrates into it’s

cost, that the luminaire

surroundings.

consumes over its lifetime.

CONTROLLED CONTRAST rates

MAINTENANCE COST

how comfortable a finished

measures how much the

scheme feels to the user.

luminaire costs to maintain

ROOM SURFACE ILLUMINATION compares the amount of

both in parts and labour over its lifetime.

light on the working plane

These two factors enable you

with the illumination of both

to measure the through life

walls and ceilings.

cost of a lighting solution.

GLARE CONTROL is a measure

INSTALLED COST is a

of how well both direct and

combination of both

indirect glare are managed.

luminaire price and

An understanding of these four factors gives an overall balance of lighting quality.

installation cost.

GLARE CONTROL


THE DUO RANGE

D U O - D u a l O p t i c Te c h n o l o g y The DUO luminaire range has

These optical cells are

If lower luminance levels are

two distinct optical elements

available with a choice of 3

required a choice of two

which are common

controllers. The Micro Prism

louvres are available, a ‘living’

throughout the range.

optic delivers exceptional

louvre which builds on our

controlled contrast with

unique Vivant louvre

higher luminance and has the

technology to create visual

unique ability to be used in

interest and a conventional

either it’s recessed position

semi-specular louvre. Both

for maximum ceiling

offer excellent glare control.

DUO employs intermediate brightness zones (IBZ), which deliver diffuse light and inject brightness directly into the ceiling plane. These work in conjunction with optical cells which deliver controlled light, maximising efficiency and reducing glare.

integration or dropped to allow it’s linear refractor optics to further enhance the lighting of the ceiling plane.


Luminaire Aesthetics As well as offering a choice

Two sizes of luminaire are

All DUO luminaires have air

of optical arrangements, DUO

available to integrate into

handling capability as

allows for two distinct

both 600mm2 and 1200mm x

standard; a carefully

aesthetic options. The DUO

300mm suspended ceiling

considered design feature

centre optic range combines

systems.

which eliminates the need

a familiar design style with

for unsightly extraction vents

high performance, whilst the

in the ceiling plane. DUO has

DUO side optic range

an air handling capacity of

maximises performance and

between 20 and 40 litres per

has been designed to offer

second depending on its

the ultimate aesthetic

optical configuration.

integration.


THE DUO EFFECT

DUO Micro Optic Side Cells Raised


DUO Micro Optic Side Cells Lowered


DUO Living Louvre Centre Cell


DUO Semi Specular Louvre Side Cells


DUO

-

C R E AT I N G C O M F O R T

The Direct View The traditional measurement

has been virtually eliminated.

Although we generally do not

of glare of a luminaire is

Today’s monitors have a

look directly at a luminaire

defined at 65° of elevation.

brightness of between 200-

from a 30° angle, we are

This measurement method

300cd/m2 and can cope with

aware of the brightness and

was developed to imitate the

luminaire brightnesses in

will make a subconscious

reflectance of a luminaire in a

excess of 2,000-3,000cd/m

computer screen which was

without causing discomfort.

of discomfort this causes.

We should perhaps assess

DUO is offered with a range

the modern luminaire in

of luminance limits and

degrees of comfort rather

employs Intermediate

than glare. With normal

Brightness Zones to reduce

ceiling heights luminaires

sudden changes in

enter our field of vision at a

brightness across the

far lower angle of incidence.

ceiling plane.

the foremost cause of glare and discomfort. These luminance limits were based on screens with a brightness of only 20-50cd/m2. Computer screen technology has evolved to the point that

2

reflected glare from screens

65°

30°

Reflected glare

Direct brightness

Understanding Brightness The primary objective in

background is reduced,

creating a comfortable

resulting in a more

lighting scheme is to avoid

comfortable field of view. It

sudden changes in

is the sudden change in

brightness. By illuminating

brightness, rather than the

the area surrounding the light

actual luminance level, which

source the differential

makes the environment

between object and

uncomfortable.

The car headlights above are both the same brightness. However, the one on the darker background appears more vivid because of the contrast between object and background.

judgement as to the degree


Intermediate Brightness Zones DUO employs Intermediate

brightness helps the human

Brightness Zone (IBZ)

eye adapt to the differing

technology to create a

brightnesses within the field

graduated brightness

of view, much like the ‘car

between the high intensity of

headlights during the day’

a light source and the

principle opposite.

relatively low luminance of the ceiling. The complex

The controlled contrast delivered by the IBZ within

structure of the IBZ

the DUO optic creates

polycarbonate material

exceptional levels of comfort

produces a highly diffuse

whilst enhancing the

light with constant

percieved brightness of the

brightness from all angles of

ceiling.

view. This intermediate

DUO brightness levels 1,500cd/m2 ave.

30cd/m2 ave.

9,000cd/m2 peak Louvres brightness levels 22,000cd/m2 peak

30cd/m2 ave.

The contrast between luminaire and ceiling is lessened by the IBZ, allowing the human eye to adapt to a more comfortable view.

Creating a Brighter Ceiling Percieved brightness as

brightness levels, DUO’s

registered by the human eye

IBZ’s have been specifically

differs greatly from that

designed to optimise visual

measured by a light meter.

comfort. Because these are

Peak intensities, as can occur

not obstructed in any view,

with T5 lamps in louvred

they have a uniform

optics, can cause severe

brightness from all angles.

discomfort.

The eye registers the

DUO’s unique IBZ technology diffuses brightness across the entire optic eliminating visual discomfort whilst greatly contributing to the percieved ceiling brigtness. Unlike semi-recessed luminaires traditionally used to achieve LG7 ceiling

contribution of the luminaire to ceiling brightness levels while sensing no discomfort from peak intensities. DUO therefore delivers a ceiling brightness well above the room surface illuminance ratios demanded by LG7:2005.


DUO

-

OPTICAL TECHNOLOGY

Micro Prism technology A vital element in DUO’s ground breaking optical

U.V. resistant coating

technology is the use of microscopic conical and linear prisms in the main optical cell. The conical prisms on the under-surface of the cell direct light towards the working plane whilst the linear micro prisms direct light back towards the ceiling plane when the optic is in its lowered position. This reduces light output in

Conical Prisms

Linear Prisms

areas which may cause discomfort. DUO’s micro prisms deliver enhanced

The entire polycarbonate cell has a U.V. resistant coating to ensure optical efficiency throughout the life of the luminaire.

ceiling illumination when the optic is in the lowered position.


Micro Polymer Intermediate Brightness Zones At the heart of DUO lies the

This microstructure refracts

unique Micro Polymer Optical

light to such an extent that it

technology. Duo IBZ’s are

appears translucent and

manufactured from a

delivers an extremely diffuse

complex polycarbonate

effect.

material which combines microscopic pearls of opal thermoplastic elements in a clear base, resulting in excellent light transmission.

This differs dramatically from traditional diffuser materials which are completely opal, resulting in extremely poor

DUO Micro Polymer Optics

Traditional opal diffusers significantly

light transmission.

diffuse light with only a small

reduce light transmission

reduction in light transmission

Micro–film reflector technology DUO’s optical cell is also

DUO can also be specified

available with a ‘living’ louvre.

with a semi-specular

This unique louvre

aluminium louvre. This high

technology, first used in our

quality material is coated

Vivant luminaire, creates

with a microscopic film of

visual interest and gives a

pure aluminium which

different appearance to the

achieves maximum

luminaire.

reflectivity and an iridescent

The louvre has a unique shimmering metallised finish which injects life into the ceiling plane.

free appearance.


BIO -DYNAMIC LIGHTING

Creating the Right Appearance DUO has been designed to

The colour temperature of

provide motivating,

lamps used in the DUO

interesting and comfortable

range can be tailored to

spaces. The choice of colour

determine the effect the

temperature of the lamps

lighting has on its

used in DUO can have a

surroundings. A warm colour

dramatic impact on the

temperature can have a

appearance of the space.

relaxing effect, whilst a

Furthermore, research has

cooler colour temperature

shown that colour

will aid concentration.

temperature has a direct biological effect on the

The use of 6500k daylight balanced lamps is becoming

occupants of the workspace.

more popular in the workplace, as their cool appearance creates a bright space with a more natural outdoor feel.

B i o - D y n a m i c L i g h t i n g Te c h n o l o g y Lux

DUO is available with Bio-

both colour temperature and

Dynamic Lighting which

lighting level.

enables a continual subtle

600

change in both the colour temperature and intensity of 400

the lighting during the working day. This specially developed control system is

08.00

10.00

12.00

14.00

16.00

18.00

hrs

programmed to a unique algorithm which optimises

This will counteract the body’s natural tendency to be less alert at certain parts of the day, resulting in an improvement not only in performance, but in the wellbeing of users.


Understanding the Biological Effects of Light To further influence the effect that lighting has on people, it

Circadian Rhythm - the body’s natural cycle of alertness

is important to understand the relationship between light and the body’s alertness. Light is not just image forming. The human body responds to changes in light intensity and colour resulting in different levels of alertness throughout the day. Two chemicals, Cortisol and

6

Melatonin, are produced by

12

18

24

6

12

18

the body and these control Alertness

our alertness levels. This is

Melatonin

Cortisol

called the Circadian Rhythm. Melatonin is a sleep hormone

artificial lighting can increase

temperature and light

and Cortisol promotes

alertness and contribute to a

intensity within a workspace

alertness. Over a 24 hour

feeling of well-being.

during the day to promote

period these combine to create our natural rhythm of sleeping and waking hours. This rhythm is regulated by natural changes in light. Research has proved that varying the intensity and colour temperature of

When looked at in more detail, the body experiences peaks and troughs of alertness during the day. Artificial lighting can be used to counteract these dips by altering the colour

awareness at times when Melatonin (sleep hormone) is naturally increasing in the body. This technique creates a more productive and stimulating working environment.

DUO’s Bio Dynamic Lighting system gradually varies both lighting intensity and colour temperature throughout the working day to create the optimum working environment

24

6


DUO

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ADDING DRAMA


Duo Colour DUO can be used for more

The LED element is

than functional lighting. It is

contained within the body of

available with built-in LED

the luminaire and consumes

elements which can be used

only 9W of power, giving the

to create a number of

designer the opportunity to

dramatic effects.

significantly reduce energy

For any prestigious project, the building’s night-time appearance is an important

consumption when compared to a conventional floodlighting scheme.

factor. Until now this has

DUO Colour can be used for

been achieved with external

a number of applications as

luminaires which are both

well as building floodlighting.

costly to install and run. DUO

Reception areas can be

can incorporate coloured LED

illuminated in corporate

elements which can be used

colours, whilst using DUO

to ‘floodlight’ the building

Colour in stairwells and

from inside creating a

lift lobbies could aid

dramatic visual statement.

navigation or enhance architectural features.


T E C H N I C A L D ATA

Photometric Data DUO Side Cell Recessed

DUO Side Cell Recessed

DUO Side Cell Recessed

MICRO OPTIC 4 x 14W T5

LIVING LOUVRE 4 x 14W T5

SEMI-SPECULAR LOUVRE 4 x 14W T5

o

• 65 Max*= 2208 (3285)cd/m2 • LOR*= 62.0 (66.7)%

o

o

• 65 Max = 1934cd/m2

• SHR MAX = 1.53

200

• 65 Max = 1363cd/m2 300

• LOR = 68.2%

350

• LOR = 64.1%

• SHR MAX = 1.73

• SHR MAX = 1.30

UTILISATION FACTORS UF(F) SHR NOM 1.50 Room Reflectance Room Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . W F 0.75 1.00 1.25 1.50 2.00 2.50 3.00 4.00 5.00 C 0.70 0.50 0.20 0.40 0.45 0.49 0.52 0.56 0.59 0.61 0.63 0.65 0.50 0.30 0.20 0.35 0.40 0.44 0.47 0.53 0.54 0.56 0.59 0.61 0.00 0.00 0.00 0.31 0.35 0.39 0.42 0.46 0.48 0.50 0.53 0.55

SHR NOM 1.50 UTILISATION FACTORS UF(F) Room Reflectance Room Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C W F 0.75 1.00 1.25 1.50 2.00 2.50 3.00 4.00 5.00 0.70 0.50 0.20 0.47 0.52 0.57 0.60 0.64 0.67 0.69 0.71 0.73 0.50 0.30 0.20 0.42 0.47 0.52 0.55 0.59 0.62 0.64 0.67 0.68 0.00 0.00 0.00 0.37 0.42 0.46 0.49 0.53 0.59 0.58 0.60 0.62

SHR NOM 1.25 UTILISATION FACTORS UF(F) Room Reflectance Room Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C W F 0.75 1.00 1.25 1.50 2.00 2.50 3.00 4.00 5.00 0.70 0.50 0.20 0.44 0.50 0.54 0.57 0.61 0.63 0.65 0.67 0.68 0.50 0.30 0.20 0.39 0.42 0.49 0.52 0.56 0.59 0.60 0.63 0.64 0.00 0.00 0.00 0.35 0.41 0.45 0.47 0.51 0.53 0.55 0.57 0.58

Typical UGR (70:50:20) 4H 4H = 18 *Cell in recessed position - Figures in brackets Cell in lowered position

Typical UGR (70:50:20) 4H 4H = 17

Typical UGR (70:50:20) 4H 4H = 15

DUO Centre Cell Recessed

DUO Centre Cell Recessed

DUO Centre Cell Recessed

MICRO OPTIC 1 x 28W T5

LIVING LOUVRE 4 x 14W T5

SEMI-SPECULAR LOUVRE 1 x 28W T5

o

• 65 Max*= 1847 (2715)cd/m2 • LOR*= 67.1 (75.0)%

o

o

• 65 Max = 1914cd/m2

• SHR MAX = 1.53

300

• 65 Max = 654cd/m2 300

• LOR = 66.9%

350

• LOR = 69.17%

• SHR MAX = 1.70

• SHR MAX = 1.81

SHR NOM 1.50 UTILISATION FACTORS UF(F) Room Reflectance Room Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C W F 0.75 1.00 1.25 1.50 2.00 2.50 3.00 4.00 5.00 0.70 0.50 0.20 0.42 0.47 0.52 0.55 0.60 0.63 0.65 0.68 0.70 0.50 0.30 0.20 0.37 0.42 0.46 0.50 0.54 0.57 0.60 0.63 0.65 0.00 0.00 0.00 0.32 0.36 0.41 0.44 0.48 0.51 0.53 0.56 0.58

SHR NOM 1.50 UTILISATION FACTORS UF(F) Room Reflectance Room Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C W F 0.75 1.00 1.25 1.50 2.00 2.50 3.00 4.00 5.00 0.70 0.50 0.20 0.45 0.50 0.55 0.58 0.62 0.65 0.67 0.69 0.71 0.50 0.30 0.20 0.40 0.45 0.50 0.53 0.57 0.60 0.62 0.65 0.67 0.00 0.00 0.00 0.36 0.40 0.45 0.48 0.52 0.54 0.56 0.59 0.60

SHR NOM 1.75 UTILISATION FACTORS UF(F) Room Reflectance Room Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C W F 0.75 1.00 1.25 1.50 2.00 2.50 3.00 4.00 5.00 0.70 0.50 0.20 0.44 0.51 0.56 0.60 0.65 0.68 0.70 0.72 0.74 0.50 0.30 0.20 0.38 0.46 0.51 0.54 0.59 0.63 0.65 0.68 0.70 0.00 0.00 0.00 0.33 0.40 0.45 0.49 0.54 0.56 0.59 0.61 0.63

Typical UGR (70:50:20) 4H 4H = 18 *Cell in recessed position - Figures in brackets Cell in lowered position

Typical UGR (70:50:20) 4H 4H = 17

Typical UGR (70:50:20) 4H 4H = 12

Lamp Performance

Dimensions

WATTAGE

IL@25°C

LAMP LIFE

276

1 x 14W T5 1 x 24W T5 1 x 28W T5

1,200 1,750 2,600

20,000hrs 20,000hrs 20,000hrs

575 121

102

300

1176

Weight KG

600 600 300 300

x x x x

600 variant 600 emergency variant 1200 variant 1200 emergency variant

1200

600

4.9 5.9 8.1 9.1 Burgess Spring Tee Integration

SAS 150 Spring Tee Integration

QuickLink

Cut Aperture Ceiling Integration

DUO

Go


ORDER CODES

OPTIC

CONFIGURATION

LAMP TYPE

Luminaires for 600 x 600 exposed tee ceilings (supplied without lamps) Micro Optic Side 4 x 14W Micro Optic Centre 3 x 24W Living Louvre Side 4 x 14W Living Louvre Side 3 x 24W Living Louvre Centre 4 x 14W Living Louvre Centre 3 x 24W Semi Specular Louvre Side 4 x 14W Semi Specular Louvre Side 3 x 24W Semi Specular Louvre Centre 4 x 14W Semi Specular Louvre Centre 3 x 24W Luminaires for 1200 x 300 spring tee ceilings (supplied without lamps) Micro Optic Centre 2 x 28W Micro Optic Centre 1 x 28W Living Louvre Centre 2 x 28W Living Louvre Centre 1 x 28W Semi Specular Louvre Centre 2 x 28W Semi Specular Louvre Centre 1 x 28W Luminaires with Bio Dynamic Lighting for 600 x 600 ceilings (supplied with lamps) Micro Optic Side 6 x 14W Micro Optic Centre 5 x 24W Living Louvre Side 6 x 14W Living Louvre Centre 6 x 14W Luminaires with Bio Dynamic Lighting for 1200 x 300 ceilings (supplied with lamps) Micro Optic Centre 3 x 28W Living Louvre Centre 3 x 28W Controllers for Bio Dynamic Lighting Bio Dynamic Controller (controls up to 100 luminaires) Bio Dynamic Controller with LED channel (controls up to 100 luminaires)

ORDER CODE

DUOSH414PXT DUOCH324PXT DUOSH414VXT DUOSH324VXT DUOCH414VXT DUOCH324VXT DUOSH414WXT DUOSH324WXT DUOCH414WXT DUOCH324WXT DUOCH228PST DUOCH128PST DUOCH228VST DUOCH128VST DUOCH228WST DUOCH128WST DUOSYS614PXT DUOCYS524PXT DUOSYS614VXT DUOCYS614VXT DUOCYS328PST DUOCYS328VST DUOBDC DUOBDCL

SPRING TEE CEILING INTEGRATION Replace suffix on order codes above

ST Integration with Spring Tee Ceilings (600 x 600 variants only), i.e. DUOSH414PST T15 TEGULAR CEILING INTEGRATION Additional Order Code

DUO600BKTKIT Bracket Kit to allow XT variants to ‘pull up’ onto T15 Tegular ceilings (included as standard in ST variants) GEAR Replace suffix on order codes above

D Digital DSI Gear, i.e. DUOSD414PXT Y Digital DALI Gear, i.e. DUOSY414PXT DUO COLOUR Add suffix to order codes above

/LB LED Kit Blue, i.e. DUOSH414PXT/LB /LR LED Kit Red, i.e. DUOSH414PXT/LR /LG LED Kit Green, i.e. DUOSH414PXT/LG EMERGENCY Add suffix to order codes above

/EMIN Emergency pack for 4 x 14W variants, i.e. DUOSH414PXT/EMIN EASYTEST OPTION Add suffix to luminaire order codes above

/ET

Easytest self test emergency i.e. DUOSH414PXT/ET

To specify state: Recessed T5 600mm² luminaire with dual optic configuration and Air return facility. Incorporating Intermediate Brightness Zone element to diffuse light and graduate brightness across the ceiling, manufactured in a Tp(a) rated polycarbonate, and (1 / 2) optical cells with (Micro prisms / Living Louvre / Semi spec Louvre) to control light and reduce glare – as Whitecroft Lighting DUO.


WHITECROFT

LIGHTING

LTD

BURLINGTON STREET A S H T O N - U N D E R - LY N E L A N C A S H I R E OL7 0AX UNITED KINGDOM

+44 (0)870 5 087 087 +44 (0)870 5 084 210 E M A I L @ W H I T E C R O F T L I G H T. C O M W W W. W H I T E C R O F T L I G H T I N G . C O M

TELEPHONE:

FAX:


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