A 2 Way Switch Wiring Diagram with Power Feed from the Switch light : The power source comes from the fixture and then connects to the power terminal. You will see that there is a hot wire that is then spliced through a switch and that then goes to the hot terminal of the light. How to Wire a Light Switch - Ask-The-Electrician Featuring Wiring Diagrams for Single Pole Wall Switches Commonly used in the Home. Explanation of Wiring Diagram #1. Switch wiring shows the Power Source (Power In) starts at the switch box. Circuit electrical wiring enters the switch box ; The Black Wire - Power In (source) attaches to one of the switch screw terminals How to Wire a 3 Way Switch - 3-Way Switch Diagram Regardless of what 3-way switch wiring diagram, you’re following, you’ll need to use a 3-wire cable to connect the two 3-way light switches. So what you should see if you have correct 3-wire electrical cable (Romex) is a black (power) white (neutral) and now a 3rd (Red) wire. Wiring a 2-Way Switch - Wiring Examples and Instructions When wiring a 2-way switch circuit, all you're really doing is controlling the power flow (Switching off/on) to the load (a light, lamp, outlet, ceiling fan etc.) Now a typical circuit will contain a 3-wire How to wire a 1 way light switch. One way lighting How to wire a one way lighting circuit - In this tutorial I show how to wire a one way light switch, I show how a 1 way and 2 way light switch works, I expla..