Mechanical countdown switch: This is a mechanical countdown switch, the time range can be controlled by the switch button. The countdown switch can operate electrical appliances during the setting time and stop automatically. Precise timer: countdown switch The bowl is made of high quality plastic, which makes it environmentally friendly, safe and durable. The shortest set time is 1 minute and the longest set time is 60 minutes. The timing is very precise. Energy saving: countdown timer is the ideal energy saving solution for bedroom, exhaust fan, air conditioning system. watering, garage and laundry room. Save energy, adjust the time as needed. Applicable in many places: Our countdown switch is very suitable for your bathroom, cabinet, pantry, garage, laundry room, spa, enclosed patio, etc. Easy to use: The large time scale allows you to quickly set the time and read the time clearly. The LED indicator can remind you whether your electrical appliances are on. Note: The data is all measured manually, please allow 1-3cm error due to differences in light and display , there may be color differences, please refer to the actual item received.