1,A self-powered wireless switch that does not require a battery. In the absence of a battery or WiFi, you can tap the switch panel to convert the kinetic energy of finger pressure into electrical energy and send a 433 MHz wireless signal to the receiver to turn the lights on or off. 2. Easy to install, the switch panel does not require rewiring. Simply connect the receiver to the live and neutral wires of the desired light and tap the switch panel to control the light on and off. 3,A self-powered wireless switch with strong RF signals, which can transmit strong RF signals through walls and doors to control light fixtures within areas of about 50 meters indoors (150 meters outdoors). It is very suitable for controlling light fixtures in homes, garages, outdoor lighting, and gardens. (Cannot be installed inside a metal box because the metal will shield the signals and cannot be used!) 4, DIY your wireless light switch system, which can control one receiver with multiple switch panels, such as up and down stairs, entrance and bedside, requires multiple switch panels to control the lighting scene. Different wireless light switch kits will not interfere with each other or cross code. Can create a perfect home lighting control system 5, Waterproof self-powered wireless light switch, due to the milliamp electricity level emitted by the switch panel, there will be no circuit break and it can be used even in humid environments such as bathrooms and courtyards. Simply press the switch panel to remotely turn on/off indoor lighting equipment, ceiling lights, plug-in chandeliers, light fixtures, hard-to-reach lights and other devices. 6, Wide Voltage Receiver: AC100-230V (can be used in most countries around the world), small receivers can be easily installed in control boxes such as ceiling lights, switch boxes and junction boxes. Rated Power: 10A