2014-09-23
The Illumination Engineering Society (IES) recently published a “position statement” (PS-8-14) which states that color rendering “requirements should not be a metric used in energy regulations to characterize color attributes for solid state lighting.” This unfortunate wording has caused unnecessary headaches within the lighting community, but what the well-intentioned IES meant to say was that the commonly used Color Rendering Index (CRI) metric is not entirely adequate and a replacement is warranted. We fully agree and are actively engaged with IES to improve this metric, but by no means should color rendering requirements be put on the sidelines while we all wait for improvements!
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