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How Dangerous Are Common Halogen 100W Bulbs?

Discussion in 'Misc Electronics' started by W. eWatson, Oct 22, 2008.

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  1. W. eWatson

    W. eWatson Guest

    I had a 4" bayonet type in a socket. It just burned out. There are no
    warning on the package, but my wife thinks they are dangerous. 5mg Hg. 60W
    Westinghouse soft light, 2 yr. guarantee. She worried if it had broken. All
    sorts of horrible things according to Snopes.
    W. eWatson

    (121.015 Deg. W, 39.262 Deg. N) GMT-8 hr std. time)
    Obz Site: 39° 15' 7" N, 121° 2' 32" W, 2700 feet

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  2. Don Bruder

    Don Bruder Guest

    I'll second that...

    In a DISCHARGE lamp of some sort, sure. But a halogen is essentially
    nothing but a "fancied up" incandescent that runs hotter than standard
    so it can rebuild its filament instead of using it to silver the inside
    of the bulb.

    Beyond "naturally occurring trace amounts" of Hg (which might be part of
    the components simply because nobody bothered to go to the effort of
    removing it from the raw materials) what's a halogen bulb need ANY
    quantity of mercury for?

    I can't see a halogen bulb being anything but a purely physical danger
    due to the sharp edges typically found on broken glass. I can think of
    no chemical hazard at all.
  3. Eeyore

    Eeyore Guest


  4. Wim Lewis

    Wim Lewis Guest

    The halogen itself is probably bad for you. But there's not much of
    it, it'll have escaped once the bulb is broken, and it's not an
    accumulating poison like mercury or lead. I have a hard time coming
    up with a scenario in which it would be an actual danger.

    I assume the warnings about the dangers of broken bulbs have to do with
    the use of mercury and beryllium (both pretty toxic) in fluorescents.

    Thing is, the OP mentions the marking "5 mg Hg" on the broken bulb.
    Maybe it isn't actually a halogen?
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