lumen (unit of luminous flux)
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Meanings
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lumen; unit of luminous flux
technicalA scientific and technical unit used in physics and lighting engineering. Symbol is 'lm'. Informally abbreviated as 流 (liú). Used with light bulbs, LEDs, etc.
Zhè这
gè个
LL
EE
DD
dēng灯
pào泡
de的
liàng亮
dù度
shì是
bā8
bǎi0
liú0
míng流
明
。
The brightness of this LED bulb is 800 lumens.
Liú流
míng明
shì是
héng衡
liáng量
guāng光
yuán源
shū输
chū出
guāng光
gōng功
lǜ率
de的
guó国
jì际
dān单
wèi位
。
The lumen is the international unit for measuring the light power output of a source.
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Shǒu手
diàn电
tǒng筒
de的
liàng亮
dù度
tōng通
cháng常
yòng用
liú流
míng明
biǎo表
shì示
。
The brightness of a flashlight is usually expressed in lumens.
Liú流
míng简
jiǎn称
chēng流
，
liú比
bǐ如
"
rú这
zhè个
gè灯
dēng有
yǒu2
liǎng0
qiān0
liú0
流
"
。
Lumen is abbreviated as 流, for example, 'This lamp has 2000 liú.'