This product can automatically switch on and off the power of various powered devices according to the time set by the user.. Suitable for the automatic control of street lamp, neon lamp, advertising sign lamp, production device, broadcast television device and other power devices. Adopt high precision industrial grade chip for accurate timing control. With strong anti-interfere rejection, stable performance. Built-in high-performance battery is used as a backup power supply to maintain the timing, display and data storage in case of no external power supply. We strive to provide you with the highest quality product and the best customer experience, if you're not entirely satisfied, please just feel free to contact us at any time.