SETTING MODES - Up to 20 times on and off, with 7-day repetitive cycle or single day setting to meet your needs, this pool pump timer features auto on, off, and daylight saving time mode. Manual Button This pool controller uses a manual button to turn it on or change the mode, supports multiple modes and date setting, no repeated settings required during power outages. Applicable Range Specially designed for high-power indoor and outdoor electrical devices, such as pool pumps, heaters, filters and other motor-driven equipment, simple and practical. Waterproof Shell This timer adopts waterproof PC shell, insulation and flame retardant, which can resist UV rays and high temperature, 2 water outlets to prevent water from entering the junction box. Built-in Battery The pool pump timer switch has a built-in 200mAh lithium-ion battery, which ensures long endurance and convenient use anytime, anywhere, with great practicality.