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Specifying Light Sources beyond Color Fidelity

04/1/2020 6:00PMSign-up to receive press releases.


​For many decades, light sources have been specified by their correlated color temperature (CCT) and general color rendering index (CRI)1. With the adoption of light-emitting diodes (LEDs) for general lighting purposes, these two specification items, alone, are insufficient to fully characterize the appearance of object colors in a lit environment.

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