The LC&D wireless switch can be stuck or screw-mounted onto any flat surface, providing instant control of any of LC&D's lighting control systems. Every transmitter is manufactured with a unique 32-bit address allowing multiple wireless switches. The Wireless Receiver sits on the GR 2400 bus and is mounted within a reasonable distance from the transmitting Wireless Switches. The Wireless Switch is fully digital, maintenance free and does not require batteries. (Required: Wireless Receiver GR2400 WREC)