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Lm Meaning in English

word

/ˈɛl ˈɛm/
EL-EM
/ˌɛlˈɛm/
el-EM

释义

'lm' is the symbol for 'lumen,' a unit used to measure the amount of visible light produced by a source.

用法与细微差别

'lm' is always used in scientific, technical, and product specifications, never in general conversation. It always refers to light output and should not be confused with other measurements like watts (power).

例句

This light bulb gives 800 lm of brightness.

basic

LED lamps often show their lm level on the package.

basic

A flashlight with more lm is brighter.

basic

How many lm does this lamp use?

natural

If you want a brighter room, look for bulbs with higher lm.

natural

Manufacturers list lm on their products because people compare brightness.

natural