Energy-Saving Programmable Outlet Timer This programmable outlet timer allows you to schedule the on/off times for connected devices, saving energy and maximizing convenience. Features: Flexible Programming: Set up to 20 different ON/OFF programs over a 7-day period. Each program repeats weekly. Memory Backup: Programming and current time are saved in memory, even during power outages, thanks to a built-in rechargeable battery. Easy to Use: Features a large LCD screen and manual override button, allowing you to skip programs if your schedule changes. Wide Application: Suitable for lamps, fans, heaters, air conditioners, portable chargers, and other household appliances. This electrical outlet timer processes the data stream and enables time-controlled switching on and off of connected devices. It stores and executes up to 20 switching programs and also has a countdown function.