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 an 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 operation. 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.