-=D@n=- wrote:

Ok. The light is on the same 'ring' as another light I think (when I switch
one ring off on the consumer unit, both wires are dead. If I just tape up
the wire and stuff it into the hole in the wall, am I looking for trouble?

Yes, really not a good idea.

You have 2 options:

1. Run a new earth.

2. Replace the light with a double insulated plastic one that does not
require earthing.



--
Grunff