Next, cut a hole to accommodate the switch box you’re planning to add, and then cut a one- to two-inch tall slot a few inches wide below the outlet to allow access to fish the wire through.

3-way switches are also marked with four wires in the wall outlet: a ground wire, a hot lead wire, and two travelers to allow for a connection to another switch or outlet.

How to install the receiver To avoid electric shock, always turn off the power to the light fixture or outlet you want to add the switch to.

Got your hands full? Don't drop everything just to find the switch. This light switch's smart sensor will turn on the lights for you.