Leds in the vanGogh Museum

It took half a year to test various led solutions to come up with the right solution for the museum to light their exhibitions. It is known that by the use of cheap pigments, the detorioration of the colours is extreme in his works. Light is a big factor in this colour depreviation. Less light is damaging less, but it also depends on the spectral content of the light. While the damaging elements of the lights need to be filtered out of the lightbeams we also want to see the original colours of the works. They can be very distorted by the use of the synthetic distribution of energy efficiënt lightsources. They may lack parts of the spectrum while rising some other. This might lead to a very different rendering of the colours.

In these tests we gained a lot of trust in the sources of Xicato that have very good documentation on their specifications where other brands are very secretive on that. Measurements we took proved that the specifications were right to the published. Also they had the highest CRI of 97-98 where other wellknown brands did not come up to further than 90, that proved to be not good enough as they advertise. While CRI has said not to be the best normalisation to specify colour rendering, it is a reference. Of course our eyes and those of curators did the final test.

The newest lighting is used in the current Much/vanGogh exhibition, reviving the new entrancehall and the upgraded Kurokawa Pavillion.

The sources of Xicato can be used in a multitude of fixtures of different brands, providing the diversity in look and optical variation that all purposes can be met. Utilisation in different circumstances need to be researched on basis of type of source and options and look of the various brands of spotlights. Of course I am available to help you in finding the right combination for your situation, while selecting led's became a much more intensive and elaborate assignment than with conventional lighting.