List Of Black Screw On A Light Switch 2023. This terminal is responsible for completing the circuit, allowing the light to turn on and off. The two screws are for the incoming (line) and outgoing (load) power wire and the third screw is for the ground or earth wire.
Either it accepts the incoming black (hot) wire from the power source, or it connects to the black (hot) wire that leads onward to the light fixture. When it comes to wiring a light switch, knowing what wire goes to the black terminal is an important step. The black and white wires are attached using brass screws (image 1);
