I have just removed a roof light fitting which is wired two way (i.e. can be switched on/off from two different switches) to find that the junction box is a metal rod in three separate segments. One segment has two screw terminals - the two wires are therefore electrically connected. The other two segments have three screw terminals each.
It fell partly to bits but it looks like the three segments are meant to line up and slot into the side of a clear plastic sleeve which keeps the three segments apart.
I guess whoever fitted this "junction bar"(?) did so because it takes up very little space.
I have tried to find something similar to replace it with but without much success. Does anyone know where I might get one?
It doesn't have to be identical, but there is very little space so a full size junction box is no good.