So how important is CRI to you? Depending on the project or use of your bulbs, it can be equally important as the look. Sources with CRI values less than 50 are generally regarded as rendering colors poorly, that is, colors may appear unnatural. The higher the CRI of the light source, the "truer" it renders color. Incandescent lamps and daylight have a CRI of 100, the highest possible CRI. CRI is a more important consideration for retail lighting design than it is for office lighting.Īny CRI rating of 80 or above is considered high and indicates that the source has good color properties. Compact fluorescent lamps are graded at 82-86 CRI, which is considered high quality color rendering. There are two standard measurements for the color characteristics of light: "color rendering index" (CRI), a term used to describe the extent to which an artificial light source is able to render the true color of objects as seen by natural outdoor sunlight which has a CRI of 100, and "color temperature", which expresses the color appearance of the light itself.Ĭolor Rendering Index: Incandescent is used as the base reference of 100 CRI.
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