Super DesignRF 433Mhz Wireless Light Switch. No wiring needed between the lights and the switch. Stable and reliable performance with high receive sensitivity (> - 97dBm). Transmission of the radio frequency signal. A strong signal can pass through walls, floors, doors, signs, etc. It can be controlled from within 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 type 86 switch. Easy to InstallThe mini size of the receiver is 47*42*23mm. It is installed between the power supply and the device. It can be easily hidden in most electrical boxes or junction boxes, or can also use screws to attach it to the board. You can easily install it to control the lights or outlet. No wiring requests. Multiplayer ControlEach receiver can store about 10 wireless switches. This way, you can share the switches as a family. You can all remotely control the device corresponding to the receiver. And one transmitter can also control multiple receivers. For example, 1 switch installed on the wall next to the bedroom door and another placed on the bedside table. Quality AssuranceHigh-quality relay that can be used more than 400,000 times. This receiver adopts a 10 amp relay, which can charge high-power electrical appliances. The receiver is suitable for AC voltage 85V~250V, so AC 110V/220V/230V is OK. High Quality SwitchThe wireless switch can be clicked more than 500,000 times. The 12V 27A battery is requested. And it can work for about 5 years. The battery can be replaced after disassembly. More FlexibilityExtremely easy to set up and reset. You can easily add additional wireless switches yourself according to your needs. Strong Signal ReceptionThere is an antenna on the receiver, so you can stretch it yourself to get stronger signal reception. Wide ApplicationThe products can be used in homes, farms, factories, offices, laboratories, supermarkets, etc. You can remotely operate 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. Secure SystemThe chip code is EV1527 learning code which is the most popular technology that makes the remote control system more stable.