观察指示灯 meaning in Chinese

viewing lamp

Observe lcd all the single boards have running - state lcds
观察指示灯各单板都有显示其运行状态的指示灯。
First insert the power supply cord into this product and then insert another end of power supply cord into the power supply socket , this unit starts to turn on and heating
通电时,人不得离开.注意观察指示灯, 4 - 7分钟指示灯变成兰色,即表示通电储热完毕;先切断电源，然后再取下本产品上的充电接头，即可以使用