1. With the countdown function, you can set a specific time to turn off household appliances, saving energy and costs. 2. When you are not at home, you can set lights to turn off to deter potential thieves and help improve your home security. Make your life easier and safer. 3. Automatically turns off electronic equipment, effectively preventing electronic equipment from overloading. Highly suitable for home lighting, fans, air conditioners, humidifiers, Christmas trees, and other electrical appliances. 4. 6 different countdown settings can be freely set to meet your various needs; all you need to do is plug the product into an electrical outlet and then select your desired setting. 5. This product is a countdown timer and simultaneously measures power consumption, voltage, current, and timing of electrical appliances as a multi-function socket. Specification: Item Type: Timer Socket Switch. Material: ABS Timer Settings: 1-10 hours Installation Method: Plug-in Voltage: 230V~/50Hz Rated Current: 16A Size: Approx. 10.5 x 5.2 x 3 cm / 4.1 x 2 x 1.2 inches Package List: 1 x Timer Socket Switch 1 x User Manual