Features: It can automatically turn on and off the power of various devices according to the time set by users. The control objects can be street lamps, neon lights, advertising signboards, production equipment, radio and television equipment and other power supply equipment and household appliances that need to be turned on and off regularly. Built-in 1.2v /40mA rechargeable battery, automatically save user programming information, no power failure worry. High precision, industrial grade chip, strong anti-interference. 24 hours / 7 days a week programmable Repeat programs with 17 on/off settings Specification: Control output: 1 loop 30A (power output), can also be used for capacity expansion control Setting times: 17on/off(day/week) Set time: 1 minute to 168 hours Travel time error: 1s/24h Power failure memory: 60 days (built-in 1.2v rechargeable battery) Mounting method: 35MM guide rail Application: advertisement light box, street lamp, oven, broadcasting equipment and other electric appliances Size:80*56*36mm/3.1*2.2*1.4in Weight: Approx.145g~148g/5.1oz~5.2oz Package list: 1 x Programmable Time Relay