12V 4CH Channel 443MHz Wireless RF Remote Control Relay Switch With Remote

It's a 12V 4CH Channel 443MHz Wireless RF Remote Control Relay Switch With Remote. 

 It's convenient for you to on/off your light. It is a Perfect for remote controlling of droplight, crystal lamp, modern low-pressure lamp, absorb dome light, day flower lamp, fluorescent lamp, energy-saving lamps, exhaust fan, LED light etc. This is a Fast and easy installation, not obstructed by walls, capable of connecting any loads. Remote controller and switch can be used simultaneously for ease and flexibility. Every set of remote controlling switch has its special code. More sets can be used in one room without interference.