Two wires called “travelers” connect the first switch to the second one. Then power leaves the second switch to go to the light. No matter which switch you flip, the light responds.

Dimmer switches can be an effective way to change up your lighting for different occasions and times of day, and installing ...

and connect them to other smart home devices using Alexa, Google Home, or Apple HomeKit. Many of the best smart light switches even have a vacation mode, which will turn your lights on and off ...

This guide gives you the lowdown on the best smart light switches to turn your home into the perfectly lit abode, and you can even connect some to your smart speaker for even greater control.