The Best 2 Black 2 White Wires To Light Switch Ideas. My black wires do not fit in the push in the back part of my new switch, plus it seems those are unreliable. The pigtail will go to the copper coloured screw on your light.
Regardless of the number of black and white wires, the main purpose of these wires is to receive the power from an external source and supply the power onwards. Take the two blacks and wire nut them together with a pigtail. Web make sure they are hooked tightly around the screw before tightening them back down.
