I think I'll go the double insulated route since the wires are chased into the wall and there are four of them.
Thank you so much for the advice.
Would I need a qualified electrician to instal the double-insulated light fittings?
Kindest regards
I need to replace my hall lights. The only wires coming out of the wall are a black and red one. All modern fittings seem to require and earth wire connection. Is there a way I can fit them safely? Heeelp!