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Halogen light bulbs are used because:

  • they can be operated at a higher temperature than can be used for ordinary light bulbs.

    This results in less heat production compared to light output and an overall much higher efficiency in the conversion of the energy which is input - electrical energy - to the energy which is output as visible light.


  • they have a significantly longer useful life than ordinary incandescent light bulbs.

Technical note

The invention of halogen lamps was based on the discovery of a special physical feature: when small amounts of a halogen gas were added to the contents of the light bulb, these were found to help to return large quantities of evaporated tungsten atoms back to the filament. This resulted in a significantly longer lifetime of such lamps.

General note about how all incandescent filament light bulbs operate

An electrical current travelling through the filament of a light bulb makes it glow white-hot and generate both light and heat because of the electrical resistance of the filament.

The filament is normally mounted within a special mixture of noble and/or inert gases held inside the glass enclosure of the light bulb, held at a pressure which is close to a vacuum.

The special mixture of gases prevents the filament from oxidizing and burning away, which would happen extremely quickly if it glowed white-hot in normal air which contains oxygen.

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โˆ™ 2011-09-25 06:47:47
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Q: What is the purpose of a halogen light bulb?
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Related questions

What type of gas is in a tungsten-halogen light bulb?

Halogen gas is in a Tungsten-Halogen Light Bulb.

Can dimmer switches be used with halogen lights?

. A halogen light bulb is very similar to an incandescent bulb. The Halogen bulb usually last a little longer and burn a little brighter. The Halogen bulb can be use with a dimmer.

How much does a halogen light bulb cost?

The cost of a halogen light bulb can vary in cost depending on the wattage of the bulb and the store it was purchased from. A bulb can range from $2.00 to over $10.00 per bulb.

What is a 60watt light bulb in halogen?

60 watts

What is the difference between incandescent light bulb and halogen light bulb?

The major difference between an incandescent bulb and a halogen bulb is the gases that each produces within its glass bulb. Incandescent bulbs fill with a mixture of 93 percent argon and seven percent nitrogen, while halogen bulbs adds a halogen gas, such as iodine or bromine. Halogen bulbs are more efficient compared to incandescent bulbs.

What size is a halogen bulb?

Halogen light bulbs are made in a variety of sizes to meet different needs.

What gas is a halogen filled with?

Halogen is a gas, so your question doesn't make much sense. If you're asking about a halogen (light) bulb, then the answer is: mainly halogen.

How can you tell when a halogen bulb is no good?

When you turn on the switch to the bulb and no light is emitted, the majority of the time, it is the bulb that is no good.

Could a light bulb make plastic melt?

a halogen 35 watt bulb - yes other bulb - probably

What light bulb uses the least energy - incandescent compact fluorescent or a halogen bulb?

Fluorescent by far.

How long does a halogen light bulb last when compared to an incandescent bulb?

sometimes 10 times as long

Why isn't my Halogen light bulb coming out?

It is stuck and you need a professional electrician

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