... ,11ch,12ch,13ch,14ch and 15ch wireless remote control switch,AC90v~AC270v or DC6v~12v voltage ... working circumstance,100m~10km meters. Our wireless remote control system advantage:I:Wide input voltage:AC90v~AC270v ... can design/produce 3 different functional wireless remote control systemindividually or design all the 3 functions ... : Electric fan wind speed wireless control Wireless Remote Lamp Socket