Wireless WIFI Remote Control Key Switch Wall Light Smart Switch Fast and easy installation in any location, install on any surface such as glass, marble, wood and metal and does not require a back box to install. No chasing out of walls, plastering and redecoration. The wireless switch has a built-in micro energy generator. The action of pressing the switch, generates enough kinetic energy to create and transmit a radio signal and switch on/off via a receiver (wireless controller) the lamp or other loads (10A) 110/240v. This solves the problem of having to install switch wiring from light fitting to the wall switch. Fast and easy installation in any location, install on any surface such as glass, marble, wood and metal and does not require a back box to install. No chasing out of walls, plastering and redecoration. PRODUCT FEATURES: - Can be used as a portable switch. Rated Current: 10A Rated Voltage: 110V-240V Size:3.39inch x 3.39inch StyleOne GangTwo Gang Three Gang Package Contains 1 X Switch