Wiring a light switch with a neon light | DIYnot Forums Can someone please help me with wiring a light switch with a neon light. The existing light switch has one cable coming out of the back box - it is 2 core + earth, I have a live, neutral and earth. I tried to wire the new light switch with the neon but switching the light on / off works but neon is always off. Wiring a DP neon switch for a light | DIYnot Forums Wiring a DP neon switch for a light. Discussion in 'Electrics UK' started by RLB10, 27 Jul 2012. Here is a diagram of the wiring I assumed I could use in the DP switch, You've got a diagram - add the neon to it and show when and how there'd be 230V across it to make it light up. Clipsal 2 Way Switch Wiring Diagram - schemaspecial Clipsal calls their light switch a one pole, one way or two way switch. . Wiring diagram of the A-type 3-way switching circuit. The onlyng and connectors. All trailers require basic 7-core wiring for the tail light clusters and electric brakes. See this wiring diagram for the correct plug and socket wiring for both round and flat connectors. How to wire a light switch | Downlights Wiring a One Way Switch. A one way light switch has two terminals which is a common marked as COM or C. The common is for the live wire that supplies the input voltage to the switch. The other terminal is marked as L1 and is the output to the light fixture.