Q. I installed a dimmer switch in my dining room and now the chandelier only works half the time. There are two switches in the room that control the light. They worked fine before I started the job.

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 ...

In my Treatlife Wi-Fi dimmer switch review last April, I remarked that it was a basic and ultra-cheap but workable option for an in-wall smart dimmer. The company responded that it has been busy ...

Q. I would like to install several dimmer switches to control light output. Do I need special wiring to accomplish this? Older dimmers I have used scared me because the switch is very warm to the ...