Feature 1、3 GEARS SELECTION: Timer switch can be set for 15, 30, 60 minutes automatic countdown function, convenient to control the switching time of household appliances. 2、WALL MOUNTED: Countdown timer switch adopts standard 86 model base, simple and easy to use wall mounted design, easy to install and save space. 3、WIDELY APPLICABLE: Multi functional design, this wall timer switch is suitable for fans, lights and other household appliances, providing more convenient timing control. 4、FLAMMABLE RETARDANT: Wall countdown timer switch is made of premium ABS material, flame retardant and stable to ensure long term reliable use. 5、ENERGY SAVING: Used to replace standard wall switch, intelligent timer function, with relay control, saves energy and improves quality of life. Item Type: Countdown Timer Switch Material: ABS Size: Approx. 86 x 86mm / 3.4 x 3.4in Delay Range: 3 Gears Selection Control Method: Relay Control Working Temperature: -20°C to +50°C Gross Weight: Approx. 110g / 3.9oz Package List 1 x Countdown Timer Switch1 x Instruction Manual 2 x Screws Note Manual measurement, please allow some errors.