2 Gang Wireless Kinetic Switch Dimmable/Non Dimmable (silver body)Wireless Kinetic 2 Gang Switch (silver finish), PRO SERIES, Installation-Easy, Battery-Free Wall On/Off Switch Outdoor Waterproof IP67 Wireless Kinetic Switch Receiver for Lamp Electric ApplianceSelf-supply and dimmable: The dimmer switch requires no batteries and no power connection. The energy is built up kinetically by pressing the switch. Small structure and that is dimmable.Through long press to circularly dim the brightness to suit any activity. Turn on the light again, and it maintains the last light intensity. With this ENER-J light switch, you don't need to pay the extra money to buy a dimmer.Can be used 2/3 Way. Multiple Switches can control one receiver and vice versa thereby elimanting the need to do 2 way rewiringRange and Usage: The effective range between transmitter and receiver (not included in the package) is approximately 30 meters indoors and approximately 100 meters outdoors. ENER-J receiver (not inc