The room where my boiler is located is currently lit by a simple porcelain lampholder with a switch in the wall. The lampholder is located somewhat near the middle of the long and narrow room. About 10 feet long and 3 feet wide.

I'd like to replace it with an LED shop light that has a short wire coming out the side for hard wiring. (See image below)

My question is: can I wire two shop lights directly to the line source? In other words, can I wire nut 3 wires together (3 black, 3 white, 3 grounds)? Do I need to use the same type of light or can I use different kinds? The wires would all be in the existing ceiling box, covered with a plate that has a hole in the center to allow the light's wire to come through.

LED light


Yes, that's fine. They don't need to be the same. I mean, one could be a humdifier unit even. Just bring the wire in a knockout on the side, and use a listed cable clamp of the type that screws into a knockout. Don't drill a hole in the box cover, don't hack or homebrew it.

If there are also receptacles on this circuit, make sure the hardwired loads on the circuit don't exceed 50% of circuit capacity.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.