Wireless Light Switch Kit which includes 2 gang Switch in White Body and 2 units of 500W RF Non Dimmable Receiver – Simple and quick installation, wireless and battery-free switch, long range receiver, highly energy efficient Easy to Install: Wireless switch allows you to control any light across the entire house wirelessly. Instantly create a switch at any location without running new wires and tearing walls. Save huge labor and material cost compared with traditional wall light switch. (3M tape provided for easy installation) Two Way Control: Can use multiple switches to control one receiver & vice versa. Thereby saving you a lot of money on labor cost for wiring Kinetic Energy: The switches is not only wireless but you also dont need to worry about changing batteries ever as the power is generated from kinetic energy Operating Range: Upto 100m outdoors, up to 30m indoors, depending on number of walls in between and thickness of the wall IP55 Rated Switches (receivers are not IP Rated) which means can be used outdoor as well in places such as gardens or bathrooms.