They can put out up to 100 lumens per watt.
它们可以输出高达每瓦 100 流明。
Lumen per watt
原声例句
Did You Know? – Verge Science
Did You Know? – Verge Science
An equivalent CFL will get you way more, between 55 and 70 lumens per watt.
等效的 CFL 将为您提供更多，每瓦 55 至 70 流明。
英语百科
Luminous efficacy
Luminous efficacy is a measure of how well a light source produces visible light. It is the ratio of luminous flux to power. Depending on context, the power can be either the radiant flux of the source's output, or it can be the total power (electric power, chemical energy, or others) consumed by the source. Which sense of the term is intended must usually be inferred from the context, and is sometimes unclear. The former sense is sometimes called luminous efficacy of radiation, and the latter luminous efficacy of a source.
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