Significant factors include regulation of line voltage, temperature of the room in which the device operates, temperature control, and condition and age of the lamps.

主要的因素包括：线路电压的调节、设备房间室温、控制的温度、条件以及灯的寿命。

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The power of this monitoring device is made up of novel switch voltage regulation circuit and linear voltage regulation circuit, the electricity of which is directly supplied by high voltage line.

监测系统采用新颖的开关稳压和线性稳压二级稳压结构电源，直接由高压线负载电流供电。

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