人眼能感知的光亮是以流明-小时为单位计量的，每流明相当于一支燃烧一小时的蜡烛产生的能量。
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.
人类眼睛所观测到的光是以流明小时这种单位度量的。
The light perceived by the human eye is measured in units called lumen-hours.
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。
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.
我们手头的其中一台XJ-A130， 开箱时最大流明输出1228流明，但使用过130小时之后其最大流明输出降为949流明，降幅达23%。
On one of our XJ-A130s, the max lumen output was 1228 when it was new. After 130 hours of use its maximum brightness dropped to 949 lumens, which is a 23% reduction.
那台先前测得1228流明的样机使用200小时后测得的最大流明为949流明，而先前测得1630流明的样机亮度衰减到1216流明。
The unit that initially measured 1228 lumens was putting out a maximum of 949 lumens after 200 hours, and the unit that initially measured 1630 lumens degraded to 1216 lumens.
有两台测试样机在使用了200小时后，都降低了25%的流明输出。
Over the course of 200 hours of use on two test units, lumen output degraded by 25% on both of them.
自己们指地是3万小时后光衰可能会年夜于30%，流明值会降低。
We refers to the 30000 hours after light failure may be greater than 30%, will reduce the lumen value.
巡查方式：第二开关上的发光二极管会发作100流明的电池节能方式，将持续权利高达44小时；
Patrol mode: second switch-on, the LEDs will produce 100 lumens in battery power saving mode which will continuously work upto 44 hours ;
巡查方式：第二开关上的发光二极管会发作100流明的电池节能方式，将持续权利高达44小时；
Patrol mode: second switch-on, the LEDs will produce 100 lumens in battery power saving mode which will continuously work upto 44 hours ;
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