Determine the luminous efficacy of the following lamps having comparable illumination outputs: a. A 300 W incandescent
Question:
Determine the luminous efficacy of the following lamps having comparable illumination outputs:
a. A 300 W incandescent lamp that emits 5820 lm
b. Two 32 W linear fluorescent lamps that emit 2950 lm per lamp in a luminaire that consumes 70 W including the ballasts
c. A 70 W metal halide lamp that consumes 88 W, including the ballast and emits 5500 lm
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Step by Step Answer:
To determine the luminous efficacy of the lamps you can use the following formula Luminous Efficac...View the full answer
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Douglas Makokha
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Related Book For 
Mechanical And Electrical Systems In Architecture Engineering And Construction
ISBN: 9780135000045
5th Edition
Authors: Frank R Dagostino, Joseph B Wujek
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