Rating of fittings with LED lighting sources

The project took illumination measurements and made subjective assessments of nine fixtures with LED light sources and 13 different LED light sources. The subjective assessments were made by professional experts based on newly developed criteria suitable for assessing light, the fixtures adjustment and function, operation, as well as aesthetics and appearance. The LED products available on the Danish market in 2008 differed greatly both visually and in terms of illumination. Most had colour temperatures of more than 4,000 K and Ra indices of less than 80. The luminous efficacies vary from 5 lm/W to 45 lm/W. (Energy 10)