... ,8ch,9ch,10ch,11ch,12ch,13ch,14ch and 15ch wireless remote control switch,AC90v~AC270v or DC6v~12v voltage working circumstance,100m ... rotation positive and negative wireless control 3):Commutative lock model:[For example 4ch wireless switch] Press remote button A,the receiver relay A ... is ON,the relay B/C/D is OFF;Press remote button ...