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 ...

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 ...

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.

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 ...

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Be careful with single-phase motors, as most single-phase motors have components to help them start or continue to run ...

Wemo adds three-way capabilities to its Wemo WiFi smart switch, providing homeowners extra flexibility and saving them some cash by eliminating the need for a companion switch. Wemo has handily solved ...