Re: real reason not to handle quartz bulb?
From: Guy King (guy.king_at_zetnet.co.uk)
Date: 07/18/04
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Date: Sun, 18 Jul 2004 11:24:52 +0100
The message <952A718ED6E37471AE@130.133.1.4>
from Svend Gr <nomail@mail.com> contains these words:
> Some websites say that the finger grease is burned off. Others say
> that the grease causes minute cracks to develop in the quartz
> glass. Are either of these correct?
I've seen bulbs with a fingerprint neatly done in black on them where
someone's handled them before installation. Whether this has shortened
their life I could not say, but I can certainly imagine that the black
spots would give local heating and anyway - they reduce the light output
slightly.
-- Being superstitious brings bad luck
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