Fixture manufacturer's data for a four-lamp linear fluorescent luminaire provides a luminaire efficiency of 0.62, a luminaire

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Fixture manufacturer's data for a four-lamp linear fluorescent luminaire provides a luminaire efficiency of 0.62, a luminaire power input (watts) of 162 W, and ballast factor of 0.87 .Data from the lamp manufacturer indicates that the fluorescent lamps under consideration will output 3050 lumens. Compute the luminaire efficacy rating (LER).

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