... 8ch,9ch,10ch,11ch,12ch,13ch,14ch and 15ch wireless remote control switch,AC90v~AC270v or DC6v~12v voltage working circumstance,100m~ ... /produce 3 different functional wireless remote control systemindividually or design all the 3 functions together.One is self lock model,anotheris ... off automaticaly...Same of channel B/C/D.Use field: Electric equipment ON/OFF wireless control;garage door open/close, ...