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Halogen Basics
Halogen light bulbs operate on the same principle as standard incandescent heating the tungsten filament until it glows but from there, halogens improve upon the process.
How Halogen light bulbs works
Operation of halogen lamps is based on the ‘Halogen Cycle’. Standard incandescent lamps and halogen lamps both use tungsten filaments. However, the filament in the standard lamp evaporates over time, causing it to weaken and eventually break. The gasses inside halogen lamps allow the evaporated tungsten to find its way back to the filament and redeposit, ensuring a long life of 20,000 hours or more.
The operating temperature is a significant factor to ensure that the halogen cycle performs properly. The interior wall of the bulb must be above 250 degrees Celsius and less than 1,100 degrees Celsius. Additionally, the filament of the lamp must reach at least 2,000 degrees Celsius. To reach this temperature, the interior wall must be in close proximity to the tungsten filament.
Benefits of halogens light bulbs
Halogen lamps offer many benefits which make them an appealing alternative to standard incandescents in many applications.
Halogen lamps provide a crisp, white light. The light quantity of a halogen light bulb is greater than a standard incandescent of comparable wattage, but the quality of the light creates a higher contrast for reading and other tasks. Halogen lamps are perfect for display accent and general lighting.
Since halogens are incandescent lamps, their CRI of 100 will render colors accurately and will match the color temperate of other light sources in the 3000K range.
Compared to standard incandescent lamps, halogens offer superior lumen performance throughout the life of the lamp.
Helpful hints in using halogen light bulbs
Don't touch the glass portion of a halogen lIGHT bulb.
For the most part, halogen Light bulbs operate in much the same way as a standard light bulb does. The biggest issue to deal with is to avoid touching the actual glass capsule portion of the bulb. Human hands leave oils on the glass, which heat up when the bulb is turned on. This heating causes the glass to become fragile and to break, thus ruining the bulb. Some halogen light bulbs are constructed as a “bulb-within-a-bulb”, such as the A-line, tubular, midbreak, and BT15 models. You can touch the glass portion of these bulbs, because the actual light producing bulb is safely inside this thick outer shell.
Be careful of the heat that halogen light bulbs can release.
Halogen light bulbs burn hotter than normal ones, so if you are using the maximum watt bulb for your fixture, and the fixture has a very close fabric shade, for instance, the extra heat may actually damage the fabric or melt plastic. Use caution when using a high wattage light bulb in these cases. In general, halogen light bulbs are about 10% hotter than normal bulbs, which in some cases is just enough to cause damage.
How to clean a halogen light bulb?
While conventional incandescent lamps can be handled with bare hands, halogen light bulbs should not. Since the quartz envelope, or bulb, of the lamp reaches high temperatures, the oils and salts from skin will deteriorate and weaken the bulb.
If your hands should come in contact with the bulb, use a small amount of rubbing alcohol and a soft cloth to clean the lamp. Allow time for the bulb to dry before using.
Halogen Light Bulb - Frequently Asked Questions was provided by www.Lighting2LightBulbs.com