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Spectral power readings of BLUE, RED, GREEN, and WHITE experimental prototype LED light fixtures using a spectral flickering irradiance meter. Four treatment groups received exposure to one of the four LED light fixtures. (A) spectral power readings for BLUE LED light fixture, (B) spectral power readings for GREEN LED light fixture, (C) spectral power readings for RED LED light fixture, (D) spectral power readings for WHITE LED light fixture.
