My mum, who's a nurse</johnny_briggs>, came up with a cunning plan for the lightbulb-over-the-stairs problem back in the incandescent era: Relocate the rose above the plasterboard, and replace the pendant flex with one a several of metres long, most of which could be kept coiled up in the loft until the need to lower it (with mild carefulling, to avoid Rodney You Plonker issues) arises.