ルーメン

ル

ー

メ

ン

Freq.FrequencyTop 50,000

Meanings

1

lumen (unit of luminous flux)

Physics term for the SI unit of luminous flux. Used in technical contexts such as lighting specifications.

このLED電でん球きゅうの明あかるさは800ルーメンです。
The brightness of this LED bulb is 800 lumens.

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