Color Rendition Index (CRI)


Color Rendition Index (or CRI) is measured by a 1-100 index that represents how well colors are illuminated by a light source. Color rendition is often considered to be a more important lighting quality than color temperature.  Most objects are not a single color, but a combination of many colors, and light sources that are deficient in certain colors may change the apparent color of an object.  The Color Rendition Index (CRI) is a 1–100 scale that measures a light source's ability to render colors the same way sunlight does.  The top value of the CRI scale (100) is based on illumination by a 100-watt incandescent light bulb.   A light source with a CRI of 80 or higher is considered acceptable for most indoor applications.

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