spotlight wiring

13 Jun 2007
Reaction score
United Kingdom
I have a wiring nightmare with two 3-way spotlights.
One light is simply wired off a black wire /red wire (earth cut short) and works fine.
The second light in the room has 2 cables coming out of the ceiling, each cable has a black wire red wire and the two earths connected together. Tried connecting two reds into brown lightwire and two blacks into the blue. Fuse blew on upstairs light circuit. What am I doing wrong please?
Sponsored Links
Sounds like a switch wire issue.

Try wiring just one set of wires on 1 twin and earth to the light. Does the light stay on?

If not try the other set, one or other will be the true LN feed.

Once this has be sussed, you need to terminate the live cable N to the lamp, the L then needs terminating to the L / red of the other cable. This then sends the L down to the switch and the N side of this cable becomes the switched live and is terminated on the L of the lamp.

The switched live should be sleeved in brown sleeving for future ID, a bit of ins tape with a marker pen is sort of ok.

DIYnot Local

Staff member

If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.

Select the supplier or trade you require, enter your location to begin your search.

Are you a trade or supplier? You can create your listing free at DIYnot Local

Sponsored Links