"Can be used with Non Dimmable or Dimmable Receivers from PRO Range Series. No Battery, No Wiring, No Wi-Fi, Self-Powered Dimmable Smart Switch for House Lighting & Appliances (Switch only) No Battery, No Wiring & No WiFi Required- Innovative kinetic energy technology to produce electricity, switch can be installed wherever without running additional wires; No need to connect Wi-Fi & tear walls; save material cost & engineer labour fee! Eco-Friendly. Secure Wireless Signal - Encrypted wireless signal can go through walls without interference problems, unique communication code between switch and receiver; 30M indoor using, outdoor up to 160M transmission distance. Designed to fit seamlessly into any decor - the wall switch and receiver are self-powered and can be used with any light; halogen, incandescent, CFL bulbs, fluorescent tubes, LED lighting, etc. Small size receiver(connect to lights or other loads) fits limited space, such as electrical junction box, lights canopy, recessed box, existing switch box, hidden in ceiling or surface mounting, etc. Safety & Easy to Install - No power needed, no complex facility, no complicated setup, only two easy steps for installation & pairing! Anyone can do it with some basic experience in wiring. Durable & Flexible Coding - Using encrypted wireless signal protocols & passed a 200,000 times endurance test, 20 years lifetime. You can have a switch control multiple lights or multiple switches control a light, like 1-2 way, 3-way, multi-ways switch. Switch Technical Parameters: Power Supply: Micro energy acquisition and self-generating power Operating Frequency: 433MHz Control Distance: 160m (outdoor),30m (indoor) Control Method: Pairing with our wireless receiver Waterproof: IP56 for Switches Number of Gangs (Keys):1 Usage On/Off Times: 200,000 Dimensions: L85mm x W85mm x H15mm Weight: 86g Technical Specifications: Product Model: WS1024 Switch Type: Push button Number of Key: 1 key Power Mode: Self-powered (No battery)