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What is a color rendering index or CRI?

April 26, 2017color CRI index rendering

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What is a color rendering index or CRI?

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This is an index from 0-100 measuring a light sources ability to render color accurately. Sodium lamps can have a CRI as low as 22, while tungsten halogen lamps can have a CRI as high as 100. Any lamp rated above 80 CRI tend to be good color rendering.