In article ,
"John Rumm" says...
Doctor Evil wrote:

Lift the boards where appropriate and break into the lighting ring and
insert loft lights properly. Don't screw about with those sorts of things.

OK for lights, but better to not a general purpose power socket from the
lighting circuit, because even if you know to only run a trainset from
it, the next owners may not!


So use one of those bayonet plugs that fit in a light socket :-)