The average bathroom ceiling isn't actually that damp or wet.
You can get some designed for use above showers etc. We have a couple,
they have an extra glass front etc.
But in the rest of the bathroom we have standard LV downlighters.
There are but whether you really need them or not is another matter.
Generally they are 2.4 metres up and out of harms way. If you look on
www.tld-direct.co.uk you'll find a whole host of IP rated lights. I've just
put 4 low voltage lights in shower cubicles and used standard flourescents
elsewhere. In "our" bathroom low voltage halogens rule!
You should be able to get IP64 rated units in your local electrical
wholesaler. These are sealed units with a ceiling mounted base fitting and a
cover that fits on like a bayonet connector to the base in the ceiling. The
cover makes the fitting as water proof as can be expected and is suitable for
bathrooms and external fitting under shop display boards and things.
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