I have a 15cm gap between joists in the hall ceiling (there's ceiling AND
floor joists, alternating).

I'm not up on fire regs - but is that sufficient if I put a GU10 downlight
dead centre?

Ideally, I'd like to know the minimum acceptable spacing as I have a few
others to do in equally tight places.

Would a fireproof downlighter fiting be recommended?

In actual fact, these will only have 3W ish LED GU10s in for nightlighting
(kids, trip to bog, that sort of thing) - but there's nothing to stop
someone putting a 50W haloen in there in the future...

Ta

Tim

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Tim Watts