How To Wire A House Light Switch March 12, 2019 Light Switch Wiring Diagram . Need a Light Switch Wiring Diagram? Whether you have power coming in through the switch or from the lights, these switch wiring diagrams will show you the light. www.pinterest.com 24 Volt Relay 5 Pin4 Pole Relay Wiring110 Wiring Color CodeBlack Duplex OutletHow To Wire A Trailer Harness3 Way Toggle Switch50 Amp Wire Size Copper220 Amp Breaker