3 Way Lighting Circuit April 16, 2019 Lighting Circuit diagrams for 1,2 and 3 way switching. Examples of the most commonly used UK lighting circuit diagrams www.flameport.com Common House Wiring4 Wire Breaker Box ConnectionHooking Up A Light Switch From An OutletDouble Rocker Switch WiringAc Connection DiagramOne Lamp Controlled By Three SwitchesElectrical Circuit LayoutCan You Use 12 3 Wire Instead Of 12 2