The way a light switch is wired depends on whether the power comes into the light box or the switch box first. These two varieties of electrical switches are called power-through switches and end ...

So why not play it safe and make use of your light switch? Admittedly, it wasn’t because [Tyler Bletsch] didn’t want to mess around with AC directly, but rather out of necessity. You see ...

(Again, it doesn't matter which.) Wrap the switch with tape and attach it to the box. Make connections to the light fixture, starting with the bare copper ground wire. Connect the bare copper wire ...

From weather stations and smart plugs to contact sensors and light switches ... of a neutral wire in the box it’s installed in, it does not depend on a companion switch or switches being ...