The weekly repeating timer plug allows for up to 20 different ON/OFF programs over a week. The timer plug can also be used for security purposes, with settings to turn lights on before you return home and randomly turn lights on/off over a period to deter burglars. It also allows for settings to automatically turn off electronics around the house when not in use. This device can be used for chargers, rice cookers, water dispensers, heaters, liquid electric mosquito coils, and other electrical appliances, electric vehicle batteries, digital camera batteries, mobile phone batteries, home security, and more. Details: 20 ON/OFF programs. Settings include hour, minute, and week. Random function for random ON/OFF changes. Can be used for security to make your home appear occupied for extended periods. Summer/Winter daylight saving time setting & built-in rechargeable battery for program memory. Manual ON/OFF/AUTO switching. Applications: Rice cookers, water dispensers, heaters, liquid electric mosquito coils, and other electrical appliances, electric vehicle batteries, digital camera batteries, mobile phone batteries, home security, and more. Specifications: Color: White Output: 125V 15A 1250W Timer/Manual control output switch Program backup: 125V 60Hz Battery standby: NiMH rechargeable battery LCD timer accuracy: +/- 1 second/day IP level Minimum IP20 interval time setting Set time in minute intervals up to 1 minute 1 minute to 99 hours and 99 minutes Size: Approx. 4-1/2 x 2-3/8 x 2-1/2