Feature:1. When the power of the timer switch is not enough, you only need to replace the battery.2. The timer switch is a programmable timer, set a schedule to control your appliances, and has a backlight.3. The timer switch can be used for 24hour intelligent analogue timing, and it can be set on/off 16 times a day.4. The long working time of 1 minute to 168 hours, so you don't need to worry about power problems.5. You can save energy and money, as well as electricity bills. You can use it for lights, ceiling fans, etc.Specification:Item Type: Digital Analogue Timer SwitchMaterial: ABSModel: TM928AKDisplay mode: LCD BacklightWorking Voltage: 85-265VACLoad: 16APower Consumption: <5VATime Range: 1min-168hrsPower Failure: 90 daysProgram: 16 Times A Day ON/OFFAverage Error: <2 Seconds/DayTemperature Range: -10-50Humidity: <95%Installation Method: DIN RAILFeatures:1. Clock Display2. Programmable Timer3. With BacklightBattery Parameters: Removable Button Battery CR2032 3V 240mAh.Package List:1 x Switch1 x English User ManualNote:Please use within the range of 85‑265V.