UGR,Unified Glare Rating, is the meaning of a unified glare value. It is psychological parameters measured that discomfort of indoor lights on human eyes.This amount can be calculated according to the provisions of the conditions with CIE unified glare value formula. UGR value is different, the lighting effect is obvious, resulting in visual and psychological differences. Different UGR lights would be applied in different places.16<UGR<19 is the preferred choice for comfortable office space. Generally used for ordinary, upscale office, library reading room, hospital, school building and so on.

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