Wireless Kinetic 2 Gang Switch PRO SERIES (White body)Wireless Kinetic 2 Gang Switch (white 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.Multiple light switches connectable: A receiver can be connected with up to 10 switches. This allows you to operate a light source with multiple switches. Quite simply as additional switches to existing light switches. Brightness 100w. Stepless dimming function and storage brightness.Range and Usage: The effective range between transmit