Equipped with a mechanical dial timer, this heavy duty switch supports 2 on/off programs within a 24-hour cycle; once set, it automatically repeats daily-ideal for controlling water heaters, AC units, pumps, signs, lights, and fans. This mechanical timer is designed to handle tough environments, max 40A 120V loads and 2HP motors; for heavy-duty indoor/outdoor applications like pool pumps, fountains, spas, mowers, air conditioners, and more-powering 1 or 2 devices simultaneously. Unlike traditional outdoor timer boxes, our improved internal layout eliminates the need for confusing jumper wires; with clear signs and wiring guides based on load type, installation is faster and easier, even for first-time users. Material: PVC.