1、Function: The light switches can be easily installed by connecting a receiver between the power supply and lighting equipment. Extending your lighting control system without affecting your existing lighting. 2、Power Generating: The self powered switch converts finger touch kinetic energy into electrical energy and sends a strong signal of 433mhz to the receiver to control the lights. 3、Strong Signal: Indoor transmission distance 164ft outdoor 656ft, strong signal can penetrate walls and doors without any interference. Please measure the distance between the switch and the receiver before installation. 4、No Wiring Needed: Install the light switch on wall, or used it as a RF remote control. It is compact enough to be installed in limited spaces, such as canopy, distribution box, electrical box without wiring. 5、Applicable Lamps: Suitable for incandescent lamps, halogen lamps, fluorescent lamps, CFL. Not fits device that the power output exceed 10A, 1200W, and 1000W of tungsten filament lamp, 600W of fluorescent lamp.