Excellent Design433MHz RF Self-Generating Wireless Light Switch. You can remotely turn on/off the light or another machine that connects to the relay receiver via the kinetic wireless switch. Stable and reliable performance with high receive sensitivity (> - 97dBm). Transmission of radio frequency signals. A strong signal can pass through walls, floors, doors etc. It can be controlled from within 50 meters of distance indoors. Easy to installThe mini size of the receiver is 60*43*27mm. It is installed between the power supply and the device. It can be easily used screws to fix it on the board. You can easily install it to control the lights or outlet. No wiring requests. Multiplayer ControlEach receiver can store about 5 wireless switches. This way, you can share the switches with the family. You can all remotely control the device that connects to the receiver. High Quality SwitchThe self-generating wireless switch can be clicked more than 200,000 times. No battery demand. Safe and waterproof, can be installed directly in bathroom, kitchen, etc. Wet hands can also touch the wireless switch. Don't worry about electric shocks and the wet and rusty battery. User-friendly and considerate mode of use for children and the elderly. Quality AssuranceHigh-quality relay that can be used more than 400,000 times. This receiver adopts a 10A relay, which can charge high-power electrical devices. The maximum load of the controller is 1000W. The receiver is suitable for AC voltage 85V~250V, so AC 110V/ 220V/ 230V is OK. Self-ProtectionThere is a 10A fuse in the receiver that can protect the receiver when overloaded. And the fuse can be replaced easily. Wide ApplicationThe products can be used in homes, farms, factories, offices, laboratories, supermarkets, etc. You can remotely control each device connected to the receiver via the wireless switch. such as lamp, lighting, ventilation device, food waste disposal, DIY wireless plug, signal transmission, etc. More FlexibilityExtremely easy to program and reset. You can easily add additional wireless switches yourself according to your needs.