... day or weekly Used in Solar,LED Usage The timer switch can open or close kinds of ... electrical apparatus and power automatically, according to preset time, the items can be streetlight, nion light (sign), billboard, ... broadcast equipments etc., the digital timer switch is within rechargeable battery, in 1.2V/40Ma, high-accuracy CMOS chip, ... Ambient Temp -10°C ~ + 55°C(T55) the new design timer switch