Four pigtails emerge from the backside of the switch—line, load, neutral, and ground—each of which must be connected via included wire nuts to the appropriate wires inside the wall.

If your smart switch has pigtails, like the one in our example, twist the like wires together (neutral to neutral, load to load, and so on) and secure each of them with a wire nut.

Even if your home wasn't exactly built "smart," it is still possible to add HomeKit light switches without a neutral wire. Here's how.

Add intelligence to your lamps with a smart light switch! By swapping out your old switches, you can command home lighting from your phone or with your voice.

Leviton’s latest smart switch doesn’t require a neutral wire. Jennifer Pattison Tuohy is a senior reviewer focused on smart home and connected tech, with over twenty years of experience.

The best smart light switches make your lights infinitely more customizable and makes it easier to keep an energy-efficient home.

GE has a new line of smart switches and dimmers that can be installed in homes that do not have neutral wires, such as many that were built before 1980. The new products provide an alternative to ...

The Wemo Smart Light Switch uses Thread wireless protocol and is an affordable, reliable option for Apple HomeKit users.

Best smart light switches to make controlling your smart home easy The home of the future is here; does your house make the cut? The Standard's journalism is supported by our readers.