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A warning about high watt lights
For those of you running high wattage bulbs, you may want to avoid
the StonGard-type lens protectors. I've got 80/100W bulbs in my
H4 euros with StonGard sheets to protect them. A few weeks ago
one of the lenses cracked in half. No evidence of impact, just a nice
clean crack down the middle. I had assumed that it was a result of
blasting the lens with cold water from the headlight washer when I
was driving around in the (very infrequent) snow.
The 80/100W bulbs run pretty hot, even on low beam (which is all
that I was using that day). The euro lens is replaceable, but I thought
I'd try to bond the two pieces together since the break was clean.
I went out last night to see if the bonded light had kept the recent
rain out of the housing. It hadn't. I also noticed that the other
lens is now cracked! #$*%*$%!!! I used my lights quite a bit
yesterday in the rain (low beam), so I am forced to assume that the
combination of the 80W bulb's heat and the StonGard covering is
causing the lens to heat up, then crack when it cools too rapidly.
Any comments/corrections? If anybody needs me, I'll be looking
for those replacement lenses. :^(
'90 CQ 20V - my 'racing-iron' ;^)