In 1958, a special type of incandescent lamp was brought in in the market. People named it halogen light bulb. It’s efficient in burning brighter and longer than typical electric bulbs, undertaking it the better alternative during cases when ultra brilliant lamps are called for. Because halogen light bulbs burn with more power and last longer, they prove to be much more efficient as compared to typical incandescent lamps.
Halogen-filled bulbs and incandescent lamps have quite the same styles, taking into account that the former were a variation of the second item. Similar to the typical incandescent light bulb, a halogen bulb is made up of tungsten filament that is covered in a bulb. However for the latter, the light bulb is made of quartz rather than glass. Quartz endures much higher temperatures than glass. Therefore, the quartz light bulb can be made near the filament, consequently enabling this kind of bulbs to be small compared to regular electric bulbs.
As suggested by its name, halogen lamps have a halogen gas in the bulb encasing. Light bulbs need an inert or nonreactive gas in the bulb to avoid reaction with the tremendously hot tungsten. Incandescent lamps have nitrogen or argon, but the new model has a halogen gas in its place. In most cases the halogen gas is iodine.
All light bulbs work by enabling electric current to move through the tungsten filament. Since this kind of filament is an extremely narrow wire, it offers high resistance which is converted to heat the moment current passes through. This heat increases until such time the line lights up white hot. Voila! You now have a working light bulb. However, while the heat may cause the filament to shine, it is likewise this particular heat that contributes to its slow wear and tear. As tungsten is heated up to really high temperatures, it vanishes. Tungsten particles end up deposited on interior walls of the light bulb in ordinary lamps. However in sophisticated lights with halogen gas, the halogen responds to tungsten particles to hold back deposition and reduce darkening of lamps. Tungsten atoms are subsequently accumulated again on the filament allowing it to last longer.
As mentioned, any halogen bulb can burn brighter as compared to an incandescent bulb. And since they shine brighter, they glow much warmer too. The quartz encasing also is much hotter considering its closeness to the shining filament. This particular heat may be good enough to ignite a flammable product near the area. So, for precautionary measure, halogen based bulbs must be positioned far from combustible and flammable items. Cautious use the bulbs should be practiced to avoid burns and accidents.
Experts do not recommend touching halogen bulbs with uncovered hands since this could ruin the quartz surface with oils and salts from the skin. The unprotected quartz surface will become a vulnerable spot to cut back the life expectancy of the bulbs. Hence, the light bulbs must only be touched, soon after being cooled down in the socket, using gloved hands. If accidental skin contact was done, the light bulb must be wiped carefully.
No comments yet.