Power window switch = the button you press to move your car windows up/down.
Quick breakdown:
• What it is: Small electrical switch, usually on the driver’s door panel + one for each passenger door. Driver side has a master switch that controls all windows.
• How it works: Press up/down → switch sends power to the window motor → motor spins a regulator → glass moves. “Auto” switches hold the circuit briefly so window goes all the way with one tap.