We may earn a commission from links on this page. If you have a light that you would like to control without fumbling for a pull string in the dark, or if you have a lamp plugged into an outlet that ...

A light switch is the simplest of electrical devices. Flip the switch, electricity flows. Flip it again, electricity stops. Lights on, lights off. That’s great for a small room with one entrance.

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Liam McCabe I made no fewer than five mistakes trying to install a smart ...