This timer could automatic turn on/off all kinds of electric equipment according to the time user set. It has a built-in rechargeable battery and a industrial grade chip. With high accuracy and strong anti-interference ability, the timer is great for controlling street lamps, neon lamps, production equipment, radio and television and many other home appliances. Features:Advanced pre-setting one week before. Digital electronics general purpose timer with daily and weekly programs. Repeat programs with 16 ON/OFF settings. To-the-minute setting accuracy. LCD displays real time to Hour/Minute and ON/AUTO/OFF. DIN rail installation, DIN rail is not included.Specifications:Current: 15APower: 3000WSwitching Capacity: Resistive 16AOn/Off Operation: 16 on and off(manual/auto)Display: LCDPower: <4WError: 2s/dayMounting 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. Programming: StepButtonProgramming1Press PSetting"1 ON" time(display 1 on)2Press D+Select days of week(if you want same set for every day, you do not need to press this button)3Press H+/M+Set hours and minutes 4Press PSetting "1 OFF" time(display 1 off)5Press PSelect days week(If you want same set for every day, you do not need to press this button)6Press H+/M+Set hours and minutes7Repeat step 2 to 6Set other on/off time8Press "time"(bottom left, next to "reset")EndPackage Includes:1 x Timer1 x English Manual.