lumen-hour 流明小时 ; 流明时
lumen hour 流明小时 ; 流明一小时
hour lumen
小时内腔
以上为机器翻译结果，长、整句建议使用 人工翻译 。
The light perceived by the human eye is measured in units called lumen-hours. This is about the amount produced by burning a candle for an hour.
人眼感受的光用流明时这个单位来衡量——燃烧一根蜡烛一个小时所产生的光的量就是一流明时。
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Operators can also hold the switch down to run the flashlight in low mode, producing a 50 lumen light beam and a longer 12 hour runtime.
ENGADGET: Explosion-proof flashlight could be the first to outlive its owner
By pressing the switch once, the light operates in high mode to produce a full power 130 lumen light beam with a long 4 hour runtime.
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