I have recently had the same light bulb explode twice inside an exterior
light fixture. I have never seen lightbulbs explode like this before, it was
just as if the top blew off (only a small piece on one and most of the top
of the other light). Another interesting thing was that one of the bulbs
that had exploded was filled with ice which might indicate that water can
get into the light fixture. Is it possible that I am getting water into the
light fixture and this cold water onto the hot lightbulb surface dont mix
very well. I dont really see where the water can get into the fixture
though. Do I have some other high/low voltage problems that could cause
Thanks for any suggestions.
You say it's an exterior light fixture, and you only get ice if there is a)
moisture and B) cold temp so my bet is you're getting some water in there
somehow. It may be condensation, but sounds more like a real leak of some
sort. What sort of fixture is it? Is it exposed to the weather and rain?
If so then you are probably going to have to figure out where the water is
entering. If it's a recessed or otherwise protected lamp, they you may have
an even bigger problem such as a roof leak of a broken pipe that is
supplying the moisture. Either way, you need to eliminate it before your
problem is solved.
Oh, and yes, it will only take a few drops of water on a hot bulb to cause
it to explode.
I had the same problem with my bulbs in an exterior light post
I was using the yellow bulbs the help keep the bug count down.
After about 2 or 3 popped in a very short time I took the time
to write the manufacturer. Received a reply asking for details
and how much the damages were.
I replied I was just passing it on as information and that the
bulbs had not caused any damages. They asked that I send them
a sample of a blown bulb, told them I had just trashed them and
they said they would send me a box to return one if it happened
again (which it did). Also they sent me a box of bulbs later on
and these have had zero problems with being used outside.
Still don't know why or what happened but yes it was the tops
that blew out, they were bug lights, but once the manufacturer
found out about it, they resolved the problem immediately
and far above my expectations. Just tossing in my 2 cents!
"Mike" < email@example.com> wrote in message
One can get bulbs, usually intended for food service applications, that
are covered with a plastic coating, such that if the bulb breaks,it
Yes, you should fix the problem with water coming into the fixture, but
this will make it safer and easier to replace the bulbs in the mean
You did say "water inside the bulb" itself, right? For that to happen
you had to have water in the fixture first. And how the bulb could get
water into it is a puzzle. Were both the fixture and bulb made in
China? I suppose the slight vacuum in the bulb could suck in moisture,
especially when it cooled. This would require multiple defects, which
is very possible with Chinese sourcing.
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