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I've just changed the light fixture in my living room, but I forgot to take a photo first.

I have two cables coming through, each with a red, a black, and a green wire in it. A wire had a red sleeve but it fell off the wire it was on. How do I put the wires back the way they were?

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    Can you post a picture of the junction box where the light fixture goes?? – JACK Jan 21 at 21:37
  • I edited your post so it could be understood BUT i can not understand what you are trying to say in this sentence. "I had a red sleeve but felk off wire how put wires back". We need a clear understanding of the situation BEFORE we can give an informed answer. Please add more info and details. – Alaska Man Jan 21 at 22:02
  • Do you have a multimeter? – ThreePhaseEel Jan 22 at 0:55
  • Is there any indication of which wire the "red sleeve" fell off of? i.e. is there any sticky tape residue on one of the wires? – FreeMan Jan 22 at 14:48
  • Red, black and green where are you in the world? – Ed Beal Jan 22 at 16:52
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Pictures are really needed to answer, but here is my best guess based on the limited information...

It sounds like this light fixture was in the middle of a daisy chain with other lights. One set of 3 wires is probably the electrical supply to the light you were working on, and the the other set of 3 wires probably carries the electricity to the next light fixture in the chain. If there is another light fixture controlled by the same switch as this one, that is probably what is going on.

To test this safely, go get an 'electrical test pen'. They are inexpensive. With the light switch on, hold the end of the pen near each wire. It should light up next to one of the black wires. Then with the switch off, it should not light up at all, on any wire.

Before making connections, turn off the breaker, and hold your electrical test pen next to each wire, with the switch on, and with it off. The pen should not light up at all, on any wire. If the light turns on there is still electricity there, don't go any further. Find the correct breaker, or call a professional.

My guess is that the red wire is neutral, black is hot, and green is ground. If so, then the two black wires should be connected together and combined with the hot wire from your light fixture (probably also black). The red wires together, and with the neutral wire from your light fixture (probably white). The green wires should connect to each other and also to your junction box. If your light fixture has a ground wire, which may be green or may be a bare wire, it should be connected to the junction box as well, so that the two grounds, the light's ground, and the box are all connected together.

Good luck!

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  • Where is red the neutral ? What location. I have seen black in other countries than mine but not red. – Ed Beal Jan 22 at 16:53

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