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How is light measured?

April 26, 2017light measured

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How is light measured?

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Light quality is expressed and measured in many ways. Light color can be measured in degrees Kelvin (K) and the color rendering index of a light source can be measured and expressed as CRI.

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Light is measured by the length of the wave. This is an extremely small distance and is referred to as a nanometer (nM). There are 1,000,000,000 in every 39 inches.