Here’s how a single-pole switch is typically wired: The electrical box usually has two two-wire cables coming into it.

Replacing a light switch is an easy task for most DIYers, but safety is most important. This guide explains how to get the job done safely and effectively.

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

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.