Hi, I've just replaced an old wall light in a 1965 house. It won't work despite checking that power is going in to it. The old light was wired to red live and black neutral and the bare earth was folded back out of use. The new light is metal with an integrated pull chord switch and therefore requires to be earthed. I've wired it up using the bare earth and the bulbs (twin) don't light. As far as I can tell either I'm unlucky and the switch is kaput or the earth is not actually connected in the loft.
Grateful for any ideas.