Specification of light
01
Colour Temperature
Correlated color temperature (CCT) refers to how warm (yellow) or cool (blue) the light emitted from an LED bulb or fixture appears. It’s measured in Kelvin (K).
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02
Color Rendering Index
Color Rendering Index (CRI) is a measurement of how natural colors render under an artificial white light source when compared with sunlight.
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The index is measured from 0-100, with a perfect 100 indicating that colors of objects under the light source appear the same as they would under natural sunlight.
03
Standard deviation
Standard deviation of color matching (SDCM) is the official unit used in LED lighting to indicate light color deviations from MacAdam ellipses to describe the color precision of a light source. The MacAdam ellipses show how LED lighting in the same product series deviates from the standard values in terms of color consistency.