Knowing how to wire a light switch is critical if you are going to tackle the job yourself. Here we show you how to wire up a ...

However, there are many simple electrical upgrades that, when done correctly, are perfectly safe. And few electrical projects are as simple and safe as replacing an old light switch.

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.