1、With the countdown timer function, you can set a certain time to turn off home appliances, thereby saving energy and costs 2、When you are not at home, you can arrange for the lights to be turned off to keep potential thieves away and help improve the safety of your home. Make your life easier and safer 3、Automatically turn off electronic equipment, effectively preventing electronic equipment from overcharging. Very suitable for home lighting, fans, air conditioners, humidifiers, Christmas trees and other electrical appliances 4、6 different countdown timer settings can be set freely to meet your different needs, all you need to do is plug the product into a power outlet, and then choose the setting you want 5、This product is a countdown timer and simultaneously measures the power consumption, voltage, current, timing of the electrical appliances as multi‑function sockets