Super Design433MHz RF wireless light switch. No wiring is required between the light and the switch. The performance is stable and reliable, and the receiving sensitivity is high (>-97dBm). Radio frequency signal transmission. Strong signals can pass through walls, floors, doors, panels, etc. and can be controlled at a distance of 50 meters in an open space.Easy to UseThe wireless switch can be fixed with double-sided tape or screws. You can turn the device on/off from anywhere via the wireless switch. It is a standard 86 type switch.Easy to InstallIt is installed between the power source and the device. It can be easily hidden in most electrical boxes or junction boxes, or it can be fixed to a circuit board with screws. You can easily install it to control lights or outlets. No wiring required. Multi-person ControlEach receiver can store about 10 wireless switches. So you can share the switch with your family. You can remotely control the device corresponding to the receiver. And one transmitter can also control multiple receivers. For example, install a switch on the wall next to your bedroom door and another switch on your bedside table. Quality AssuranceHigh-quality relays can be used more than 400,000 times. This receiver uses a 10 amp relay and can load high-power electrical appliances. The receiver is suitable for AC 85V~250V voltage, so AC 110V/220V/230V are all acceptable. High-quality SwitchThe wireless switch can be clicked more than 500,000 times. Requires a 12V 27A battery. And it can be used for about 5 years. Once disassembled, the battery can be replaced. More FlexibleExtremely easy to set up and reset. You can easily add additional wireless switches yourself as needed.