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 ...

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 ...

In some (all?) variations of a three way switch, either of two wires MAY be hot. if you are using Black/White wire, no combination is 'right'.

Now I'm a pro, but a handy DIYer can handle this task, too. Below, I'll show you the most common way to wire a 3-way switch. It's what most electricians use today, because it's easy and saves money.