1、A variable delay timer to control the lighting of the stairwell, can accurately control the delay of lighting. 2、Has a wide time setting range from 1 minute to 20 minutes, which will surely meet your various needs. 3、Made of high-quality ABS material, the time switch is very durable, the mechanical life is 10,000, 000 times. 4、With a small size and a light weight, the wiring is very simple, and the installation is convenient as well. 5、IP20 protection level to ensure safe and reliable operation of the circuit, very practical. Item Type: Time Switch Material: ABS Shell Model: TM-C20E Time Range: 0.5, 5, 10, 15, 20min Contact Capacity: 16A, AC 220V-240V Front Adjustable Knob: 0.5 Minutes ~ 20 Minutes Coil Voltage: AC 110V, 220V, 230V, 240V Electrical Life: 100,000 Times Mechanical Life: 10,000,000 Times Minimum Setting Unit: 0.5 Minutes Working Temperature: -40℃ ~ +50℃ 1 x Time Switch