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halogen lamp |
Also found in: Wikipedia | 0.02 sec. |
halogen lampor tungsten-halogen lampIncandescent lamp with a quartz bulb and a gas filling that includes a halogen. It gives brilliant light from a compact unit. The halogen combines with the tungsten evaporated from the hot filament to form a compound that is attracted back to the filament, thus extending the filament's life. The evaporated tungsten is also prevented from condensing on the bulb and darkening it, an effect that reduces the light output of ordinary incandescent lamps. First used in the late 1960s in motion-picture production, halogen lamps are now also used in automobile headlights, underwater photography, and residential lighting. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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In those situations, 'you're looking at 7 or 8 years of nonstop use before the [LED] lamps have to be replaced," whereas halogen bulbs can burn out as often as once a month. Dispute: Halogen lightbulbs last longer than ordinary lightbulbs In all lightbulbs, the tungsten that makes up the glowing filament wire gradually evaporates, so the wire thins and the bulb burns out Halogen lightbulbs are filled with a gas of either iodine or bromine The force of the gas keeps the tungsten in a halogen bulb from evaporating as quickly. There are four halogen bulbs over each of the two 20' workbenches. |
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