Description:This timer switch could automatic turn on/off all kinds of electric equipment according to the time user set. It has a built-in 1.2V/40mA rechargeable battery and a industrial grade chip. With strong anti-interference ability, the timer switch is great for controlling street lamps, neon lamps, production equipment, radio and television and many other home appliances.Features:DIN rail installation, DIN rail is not included.Specifications:Input Voltage: AC/DC12V, AC/DC24V, AC110V(Optional)Contact Voltage Rating: AC 180V to 264V(50/60Hz)Load Capacity: 16A 250VAC(resistive load)On/Off Operation: 16 on and 8 off(manual/auto)Display: LCDPower: 4.5VA(max)Error: 2s/day(25) Mounting Method: DIN rail(not included)Bound: 1 min to 168 hoursOperating Temperature: -10 to 55Size: 86 x 36 x 65mm / 3.38 x 1.41 x 2.56"Quantity: 1Instruction:1, When you use the timer switch for the first time, input AC and charge the inbuilt battery please, then press reset button.2, The timer switch is at 24-hour mode as default. Press and hold "time" button(bottom left, next to "reset") for 5 seconds till it display "AM" to set to 12-hour mode. Press and hold again "time" button for 5 seconds to set back to 24-hour mode.Package Includes:1 x Timer Switch1 x English Manual