Luminous efficacy of a typical HPSV lamp is ___

Luminous efficacy of a typical HPSV lamp is in between

A. 40 - 70 lm/watt.
B. 70 - 120 lm/watt.
C. 120 - 200 lm/watt.
D. 10 - 40 lm/watt

Show Answer

Answer: B

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