Below, Donnelly tells AD how to wire a light switch with this simple step-by-step process for a single-pole light switch without zapping yourself along the way. To make the task easier, Character ...

If you wire a 3-way switch wrong, you may be able to turn the light on from one switch, but not the other. It’s important to review how to wire a switch before attempting this project.

Now, unscrew the switch from the box and pull it forward. Use the tester to check for any other live wires inside the box. Every conductor (electrical wire) in the box should be dead.

Pull cable to boxes and light Run a 14-2 NM-B cable (white, black, bare copper) from your power supply to the first switch location. If you’re adding a 3-way setup to an existing situation, this ...

My house was built in the 50s, with wiring from that time period. I'm trying to understand how to connect a modern switch up in the place of an existing old one and it just isn't making sense to me.

Adding an electrical outlet next to an existing light switch is easy, as long as there is a neutral wire in the box.Step 1: Turn the power supply off to the light switch at the main electrical panel.

Older homes may not feature a neutral wire, so you'll need to buy a specific smart light switch that doesn't require one. The UK standard for wire colors changed in 2004.