[header] How to replace a light switch [title] Purchase a new light switch that meets your requirements at a local home repair or hardware store. [step] Tell the store employee what kind of switch you want and how many you'll need, and they can help you determine the best purchase. [substeps] Single-pole switches are the simplest and most common.
A single-pole switch has just two positions-" on " and " off. " [title] Disconnect the power to the light switch at your home's electrical service panel (also known as the breaker box or load center).