One wire comes in from the power source, and one wire goes out to the light (s). A 3-way switch adds two terminals for travelers, which connect two 3-way switches together.

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 ...

On a smart switch, the red wire often connects to the switch leg to control a light or other load. Within an electrical box, a red wire may be a traveler, a switch leg or the second hot of a 240 ...

My house was built in the 50s, with wiring from that time period. I'm trying to understand how to connect a modern switch up in the place of an existing old one and it just isn't making sense to me.

Simply wire it into your existing light switch wiring (no neutral wire required), adding some smart tech to non-smart light bulbs, like dimmable LED and CFL bulbs.

A light switch connects to the wiring of your house and acts as a gatekeeper for a particular electrical circuit, allowing you to send or cut off power to a given light source or appliance. Light ...

Installation Many smart light switches will require a neutral wire, which works with the ground wire to essentially complete the circuit of your home’s electrical wiring so it can draw power ...

A light switch connects to the wiring of your house and acts as a gatekeeper for a particular electrical circuit, allowing you to send or cut off power to a given light source or appliance. Light ...

A light switch connects to the wiring of your house and acts as a gatekeeper for a particular electrical circuit, allowing you to send or cut off power to a given light source or appliance. Light ...

A light switch connects to the wiring of your house and acts as a gatekeeper for a particular electrical circuit, allowing you to send or cut off power to a given light source or appliance.