Item Type: Mechanical Timer Model: SUL180A Material: ABS Voltage: 220-240V Frequency: 50-60HZ Minimum Switching Time: 15 Minutes Switching Capacity: 16A Mounting: DIN Rail Mount Battery: Button battery 3V 240mAh, shipped with built in battery. Package List 1 x Mechanical Timer 1Smart Control: Designed to have 15 minutes minimum switching time, the mechanical timer enables better control on the equipment. 2Reliable Work: High in timing accuracy and strong in anti interference performance, the time switch ensures efficient working. 3Wide in Using: Can be widely applied in lights, water heaters, breeding, garden watering, motors, automatic control and more. 4Good Material: Adopting premium ABS material, not likely to malfunction or break, and has excellent durability for long using. 5Easy to Install: Light in weight and compact in size as well, the convenient installation can be quickly completed in minutes.