Digital electronics general purpose time switch can repeat programs with 16 ON and 16 OFF settings for different uses for flexible scheduling. Advanced pre-setting one week before. To-the-minute setting accuracy. Built-in rechargeable battery and intelligent chip, enable to retain programming setting even in a power outage. Features:7 Day Digital Programmable Timer -- Digital electronics general purpose time switch with daily and weekly programs (10 different mode). 1 min to 168 hours full time range. Repeat programs with 16 ON and 16 OFF settings. To-the-minute setting accuracy LCD Display -- LCD displays real time to Hour/Minute and ON/AUTO/OFF, large LCD screen for easy reading, you can see every figure on it clearly. Built-In Rechargeable Battery -- It has a built-in 1.2V/40mA rechargeable battery and a industrial grade chip, so the unit retains the programming setting even in a power outage. Easy Operation -- Large screen and clear key button for easy and accurate operating. D+(setting the days), H+(setting the hours), M+(setting the minutes). Wide Application -- This timer switch could automatic turn on/off electric equipment according to the time user set. With high precision and 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.Specification: Contact Voltage Rating: AC 220V 50/60Hz Number of Circuits: 1 changeover switch (SPDT) Erro: ≤2S/day (25℃） On/Off operation: 16 times On and Off (manual / auto) Power: 4.5VA (max) Bound: 1min-168hours Battery Backup: ≥15days Minimum Interval: 1 minute Load Capacity: 16A 250VAC Mechanical Lifet: 10^7 Electrically Life: 10^5 Humidity: 35-85%RH Operating Temperature: -10 - 55 ℃ Mounting Methoud: 36mm din rail Item Size: 87*64*35mm/3.43*2.52*1.38in Packing List: 1 * Digital Timer Swich 1 * User Manual