http://www.ballastkit.com/lighting-glossary Sun, 14 Jun 2009 15:10:57 +0000 en hourly 1 http://www.ballastkit.com/lighting-glossary/cri-or-color-rendering-index-ra/ http://www.ballastkit.com/lighting-glossary/cri-or-color-rendering-index-ra/#comments Mon, 09 Feb 2009 17:38:32 +0000 Admin http://www.ballastkit.com/lighting-glossary/?p=81 Color Rendering Index (CRI or Ra) is a measure of a the lightbulbs’s ability to render colors (color spectrum) relative to a standard of 100. The higher the CRI, the better the color rendering.

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