So one hour of work translates into 20,000 more lumen hours of light that it did just in the time since this institution was founded.

因此，一小时工作转化成2万多光的流明时，而这是在美国国家科学院成立以来这么短的时间内做到的。

You can monitor the run time, the efficacy, the lumen output or the power consumption, and then we do real time measurements on the lux levels on the street level.

你可以监视运行时长, 效能, 光强及电耗, 而后我们在街道上进行照明等级的实时测量。