This product helps you save energy and money on your electric bill by timing lights and chargers to turn off automatically when they aren’t needed. Control your lighting, mobile chargers, fans, air or water pumps, humidifiers or any other accessories that need to be turned on or off automatically. It is quickly and easily programmed via switching segments . They are specially useful to save energy and increase the life of your equipment. This timer has 96 individual on/off time switching segments and it can be set to 30-minute intervals. It can be configured in any sequence to allow for maximum flexibility according to your needs.