Features Advanced pre-setting one week before To-the-minute setting accuracy Repeat programs with 16 ON and OFF settings LCD displays real time to Hour/Minute and ON/AUTO/OFF Digital electronics general purpose timer with daily and weekly programs Specifications: Input Voltage: AC/DC12V, AC/DC24V, AC110V, AC220V(Optional) Current: 15A Power: 3000W Contact Voltage Rating: AC 220V(50/60Hz) Switching Capacity: Resistive 16AOn/Off Operation: 16 on and off(manual/auto) Display: LCD Power:  <4W Error: ≤2s/day Mounting Method: DIN rail(not included) Bound: 1 min to 168 hours Operating Temperature: -10℃ to 55℃ Size: 86 x 36 x 65mm / 3.38 x 1.41 x 2.56" Quantity: 1 Battery: 1.2v 40mah NiMH battery (built in) Instruction: 1, When you use the timer for the first time, input AC and charge the inbuilt battery please, then press reset button. 2, The timer 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 1 x English Manual Package List 1 x Timer 1 x English Manual