| 单词 |
luminous efficacy of a light source |
| 释义 |
Luminous Efficacy of a Light Source Luminous Efficacy of a Light Source the ratio of the luminous flux emitted by a light source to the power consumed by the source. It is measured in lumens per watt (lm/W) and characterizes the efficiency of the source. The luminous efficacy of modern general-purpose incandescent lamps is 8–20 lm/W, and that of flourescent lamps is 40–80 lm/W. |
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