Electrical wholesalers have them, but normally to order.
You can get fittings with a polycarbonate base and a diffuser that
clips on together with a seal. They are IP65 rated and the
polycarbonate means that they are reasonably impact resistant as well
An example is RS Components rswww.com part no. 431-4533
But ask a wholesaler as you can get better pricing
Including insect infestation. Intrinsically safe units are meant for gas
tight operation, so these are the best units to get for their outdoor IP
ratings. Look for something with an IP rating of IP65. They are sold with
seal packs of washers and stuffing glands to keep everything out of the
fitting. Even if the cable entry is to be made through the back of the unit
to hide the cable, make sure you seal it from the elements and insect
I was just pondering - as you do - that a 4 foot fluorescent totally
exposed above a front door would look hideous. If, however, it was within
a porch of some sort where you only saw the light from it, fine. But then
wouldn't be exposed to the elements.
I've got four 2 ft ones exactly like this, but they're ordinary tubes
behind a custom made diffuser - with the electronic ballasts indoors.
*Life is hard; then you nap
Dave Plowman firstname.lastname@example.org London SW
So the working are not really exposed to the weather then? If the whole
fitting where to go outdoors, then it's best to make it a sealed unit to
stop the weather and insects from getting in (moths and other creepy
crawlies attracted by light). But if it's just the tubes on the ends of
bits of cable from internal electrics, then the moths go to the light and
not the workings.
The tubes themselves are basically safe to use in a sheltered position, but
heat and electrics in an exposed site will attract all sorts of things to
nest and lay in. Once the inside of a fitting becomes infested it gathers
more and more moisture through the litter left behind, which isn't a good
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