Stop walking across a dark room to turn on the light. Install a 3-way switch and control lights from two locations.

Here's how to swap outdated three-way light switches for something much better.

Fact checked by Alexandra KayFact checked by Alexandra Kay A three-way switch controls ceiling lights, fans, or other fixtures from two locations, unlike a single-pole switch, which controls a ...

In the diagram on the link they are using a three conductor cable after the first three way switch. Black, Red, and White with a separate ground.

Three-way switches control lights from two locations. There is a hot wire running from the control panel to the first switch in the sequence, a continuation of the hot wire running from the second ...

To make the wiring work flawlessly, so your husband becomes a lover of these switches, you install the same special three-wire cable between all the three- and four-way switches in the circuit.

So the existing switch has 2 terminals on one side, and 1 on the other. The 2 terminals have a black sheathed (B) and red sheathed (R) wire attached. The single terminal has a grey sheathed wire.

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.