On Sun, 12 Jun 2005 15:48:24 GMT, Jose
wrote in ::

I always though of halogen lamps as ordinary filament lamps filled with
a halogen gas that lets them burn brighter, last longer, or something,
but the filament produced the light.

Yeah, I think you're right about that. Perhaps I was thinking of HID
lamps: http://www.extreme-exposure.com/hid/faq-data.shtml
http://www.autoplusuae.com/products/kdg/index.shtml
HID System components
(1) BULB : - The Xenon Gas and mercury Metal Halide Salts existing
inside the light emitting tube causes the molybdenum electrodes on
both sides to plasma discharge and create energy, which in turn
produces light.