The LightwaveRF Power Sockets are standard wall sockets that can be operated using built in LightwaveRF technology, which means you can now wirelessly operate your electrical devices using devices from the LightwaveRF range; you can now use a Smartphone to turn this socket on/off. Using the LightwaveRF Socket Locker handset you can remotely isolate LightwaveRF Power Sockets and prevent them from being turned on or off, ideal if you have small children around the house. Furthermore, the LightwaveRF Sockets are easily fitted like any normal socket and will fit into a standard 35mm back box.   Please note: Use of a Smartphone requires LightwaveRF Wifi-Link - JSJSLW930   220~240V~50Hz Max. 13A Resistive Load RF frequency: 433.92 MHz BS1363 Amber / Blue LED indicator. Manual ON / OFF function. Available in White, Stainless Steel, Chrome and Black chrome.