... This is DC12V 4ch wireless remote control switch.We are the professional wireless remote control system manufacturer.We can design ... /produce 1ch,2ch,3ch,4ch,5ch,6ch,7ch,8ch,9ch,10ch,11ch and 12ch wireless ... AC90v~AC240v or DC12v voltage working circumstanceOur wireless remote control system advantage:I:Wide input voltage:AC90v~AC220v ...