This is very important in terms of colour representation. CRI is a measure of how accurately colours are rendered under a test light source. It is a reference based measurement developed by the international Commission on Illumination. The measurement is taken from a range of 0 to 100 CRI with 100 CRI having the best rendering. According to the US Department of Energy, a CRI in the 70s is acceptable, CRI in the 80s is good and a CRI in the 90s is excellent. This is why Ledphos only selects led batches with a CRI of equal to or greater than 90 CRI. As a reference, most fluorescent lighting and inferior/cheaper led fittings consist of a CRI of 70, as a result of low CRI, most colours represented by this light look “washed out” and artificial.