He did not mention one :? It could be remote controlled as well, It may even have a built in smoke detector or a c.c.t.v camera or even have a g.p.s locator built in too. Whatever happened to a good old light bulb :P
REGS state that the live should be wired to the center pole of the fitting But that can be ignored under
Regs:553-03-04 except for E14 and E27 lampholders
complying with BS EN 60238...
713-09-01(ii) except for E14 and E27 lampholders to
BS EN 60238...
So with the above proviso, you can...
Don't rise to the baite mate, at least if a b.g fitter mucks up, the customer has a place to complain to. Unlike a great deal of independants who will just dissapear when the going gets tough. I would trust a b.g.f long before an indepentant.