17 Hengelo, retrofits in chalice fixtures

Just like in Amersfoort, Den Bosch, Nijmegen and Den Haag HS, Hengelo features a large number of chalice fixtures under the monumental canopy. In Amersfoort and Deventer, we replaced the chalice fixtures with new LED fixtures. In Hengelo, the existing glass shades were cleaned, reused and fitted with an LED retrofit unit. Because the glass shade is reused, retrofit is a more sustainable solution than replacing the entire fixture. Back in 2015, retrofit was still lacking reliability. But in 2019, the supplier was able to provide sufficient guarantees in order to convert the chalices reliably.

The fixtures are now clean and provide more light than the old light sources. Thanks to the improved colour saturation of the LED light sources (Ra80), the colours of the monumental canopy and stained glass are better represented.

The train hall at Hengelo station also contains several chalice armatures. They were converted with LED conversion units (50% of the costs of a new fixture) as well.

Tips and conclusions:

– For large numbers, it pays to develop an LED retrofit.

– Retrofitted or converted units are also subject to the demands in RLN00012.

Retrofits are often 20% to 50% cheaper than completely new fixtures.

However, additional installation hours are required to convert old casings.

Gains in terms of sustainability are mostly made with the reuse of the casings/shades.