A light switch is the simplest of electrical devices. Flip the switch, electricity flows. Flip it again, electricity stops.

Q: At either end of my staircase I have a light switch that turns the staircase light on and off. The problem is that the switches don’t work correctly anymore ...

Q. Tim, I need you to mediate a dispute between my husband and me. We’re building a new home, and there are quite a few places where two or more switches can be used to control lights. I like the ...

I was reading up on a project and came across this link. It mentions that if a light fixture is between the switch and the panel it is common to switch the white and black wires to the right of the ...

Q: Tim, I need you to mediate a dispute between my husband and me. We're building a new home, and there are several places where two or more switches can be used to control lights. I like the ...

Back at CES in January, Belkin teased a handful of new Wemo smart home accessories launching this year – including the 3-Way Smart Light Switch. Starting today, the 3-Way Switch is available to order, ...

Interplay Learning’s on-demand course, “Diagnosing Circuits: Three-Way Lighting,” introduces multi-location light control to expand a technician’s skills and knowledge of electrical circuits and ...

Q:I have a three-way switch that controls the light at the top of the stairs. The switch at the bottom doesn't always work like it is supposed to. Sometimes when I turn it off, the switch at the top ...