We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Rachel Cericola Rachel Cericola is a writer covering smart home. In addition ...

Switchmate is a $40 AA-battery-powered magnetic light controller that clings to the screws holding up your existing switch plate. Snap it on and you're done with the installation. The sheer simplicity ...

The way a light switch is wired depends on whether the power comes into the light box or the switch box first. These two ...