1. Self-powered wireless switch, no batteries required. When there is no battery or WiFi, you can tap the switch panel to convert the kinetic energy of finger pressure into electrical energy, sending a 433MHz wireless signal to the receiver to turn the light on or off.2. Easy installation, the switch panel does not need to be rewired. Just connect the receiver to the live and neutral wires of the desired light, and then press the switch panel to control the light on and off. We have matched the product code with its factory output, there will be no code confusion, so you can use it directly!3. Self-powered wireless switch with strong RF signal, which can transmit strong RF signal through walls and doors to control lamps within a range of about 50 meters indoors (150 meters outdoors). It is very suitable for controlling lighting equipment in the home, garage, outdoor lighting and garden. (It cannot be installed in a metal box because the metal will shield the signal and cannot be used!)4. DIY your own wireless light switch system, one receiver can control multiple switch panels, such as stairs, entrances and bedside, where multiple switch panels are needed to control the lighting scene. Different wireless light switch kits will not interfere with each other or cross codes, and can create a perfect home lighting control system5. Waterproof self-powered wireless light switch, due to the milliamp current level emitted by the switch panel, there will be no circuit breakage, and it can be used even in humid environments such as bathrooms and courtyards. Just touch the switch panel to remotely turn on/off indoor lighting, ceiling lights, plug-in chandeliers, lamps, hard-to-reach lights and other equipment.