"Mike Clarke" wrote in message
...
In article , Timothy Murphy
wrote:

I'm looking for a gizmo to make a light go on when it is dark. More
specifically, it should go into a bayonet light socket, and allow a
bulb to plug in on the other side.

Would a low energy lamp with built in sensor be suitable? Screwfix have
them at 12.95 quid (quote no. 18491). They claim to come on at dusk and
off again at dawn and would avoid the need for an adapter.

--
Mike Clarke

I've been using one of these for some time (Osram Sensor Plus) in a
conventional external light fitting. It's a 15w low energy lamp.
Something to be aware of is that they are a bit longer than a normal lamp
(4.5 cm in the case of the one I've got) so check it will go in your
fitting.
Nick.