【Excellent Design】 Self-generating RF 433MHz wireless light switch. You can remotely turn on/off the light or other machine that connects to the relay receiver through the kinetic wireless switch. Stable and reliable performance with high receiving sensitivity (> - 97dBm). Radio frequency signal transmission. Strong signal can pass through walls, floors, doors etc. It can be controlled within 50 meters distance indoors. 【 Switch】 The self-generating wireless switch can be clicked more than 200,000 times. No battery request. Safe and waterproof, can be directly installed in the bathroom, kitchen, etc. Wet hands can also touch the wireless switch. Don't worry about electric shock and wet and rusty battery. Friendly and considerate use mode for children and the elderly.【Quality Assurance】 relay can be used more than 400,000 times. This receiver adopts 10A relay, which can load high-power electrical appliances. The maximum load of the controller is 1000W. The receiver is suitable for AC 85V~250V voltage, so AC 110V/ 220V/ 230V is OK.【Wide Application】 The products can be used in homes, farms, factories, offices, laboratories, supermarkets, etc. You can remotely control each device connected to the receiver through the wireless switch. such as lamp, lighting, ventilation device, food waste disposer, DIY wireless socket, signal transmission, etc.【More Flexibility】 Extremely easy to program and reset. You can easily add additional wireless switches yourself according to your needs.