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Halogens filled with Krypton gas?

Old Jul 12, 2005
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Halogens filled with Krypton gas?

I found a brand of bulbs that uses krypton gas inside the bulb so that the "filament stays cooler and can operate at higher wattages without damaging the electrical system." Is this just another marketing scheme to get you to buy their bulbs or does krypton gas really keep the bulb that much ccoler? It seems to make sense! Some of the noble gases burn at lower temperatures than others, although I am not sure if krypton is one of them! Anyways, what do you guyz think about em!
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Old Jul 12, 2005
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gimmick
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Old Jul 12, 2005
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the filament gets hot not the gas
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Old Jul 13, 2005
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There is nothing I hate more than junk science. It is the current (directly related to wattage) which destroys the wiring. This is the rate of flow of electrical charge through the wiring which destroys the wiring. Bulb temperature and filament temperature are irrelevant.
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Old Jul 13, 2005
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Originally Posted by GreatWhite02
I found a brand of bulbs that uses krypton gas inside the bulb so that the "filament stays cooler and can operate at higher wattages without damaging the electrical system." Is this just another marketing scheme to get you to buy their bulbs or does krypton gas really keep the bulb that much ccoler? It seems to make sense! Some of the noble gases burn at lower temperatures than others, although I am not sure if krypton is one of them! Anyways, what do you guyz think about em!
scam. rice. junk. gimmick. sales pitch (bad one).

think about it. no way is krypton going to help you when your wires are melting from drawing 100w on your 18AWG stock wiring.
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Old Jul 14, 2005
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i dont know bout the whole wires melting crap...but i bought a pair of bulbs which were xenon krypton filled and the bulbs are themselves are pretty good....good light output as well as the colour...very nice...if it keeps the filament cooler...then its just a bonus i guess but to stay on the safe side...just get the proper wattage for your car...i stick to 55/65 watt bulbs...and i have no problem so far, and i also have lifetime warranty on them...i jus gotta pay the shipping though...
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Old Jul 14, 2005
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ps...i type like a fob
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Old Jul 14, 2005
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Its probably gimick however, no one pointed out that different gasses transfer heat at different rates. So it is possible it could transfer the heat away from the filiment quicker allowing the filliment to stay cooler.

Now we also know that when you cool things the resistance lowers. This will cause less current to be drawn. Less current could help keep your wires from melting.

So its not totaly inconceivable that they work. But I doubt they are realy anything special and I will side with those that say it is marketing hype
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Old Jul 14, 2005
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Originally Posted by tbaleno
Its probably gimick however, no one pointed out that different gasses transfer heat at different rates. So it is possible it could transfer the heat away from the filiment quicker allowing the filliment to stay cooler.

Now we also know that when you cool things the resistance lowers. This will cause less current to be drawn. Less current could help keep your wires from melting.

So its not totaly inconceivable that they work. But I doubt they are realy anything special and I will side with those that say it is marketing hype
i'm a little rusty on my chemistry, but isn't it true that when you apply heat to a gas, the gas particles move quicker? if quicker moving particles hit the glass of the bulb, wouldn't that also cause the glass to heat up? then you have a problem with super brittle bulb glass...

although i could be completely wrong on this. i'll let the pros take this one on.
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Old Jul 14, 2005
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Originally Posted by infinite012
i'm a little rusty on my chemistry, but isn't it true that when you apply heat to a gas, the gas particles move quicker? if quicker moving particles hit the glass of the bulb, wouldn't that also cause the glass to heat up? then you have a problem with super brittle bulb glass...

although i could be completely wrong on this. i'll let the pros take this one on.
The gas molecules are really irrelevant in terms of causing your wiring to melt. It is the flow of electrons which causes the wiring to melt and subsequent damage to the vehicle to result. The purpose of applying an inert gas such as krypton is to prolong the life of the filament, this doesn't make your wiring any cooler as running higher current (wattage) bulbs heats up your entire lighting system wiring, not just the bulb. Hence my junk science comment above.

When the tungsten filament is in operation, it reaches temperatures high enough to vapourize it. To slow down this process and prevent bulbs from burning out, an inert (non-reactive) gas such as krypton under pressure is used. However in automotive bulbs as well as other high performance bulbs, a halogen gas is used in conjuction (iodine, bromine, chlorine, etc). To make a long story short, the halogen helps scrub the inside of the bulb clean of tungten deposits at high temperatures (in operation) and helps to return the tungsten to the filament as the bulb cools (when its off). The glass is a special quartz glass which is made to withstand these high temperatures so it won't shatter as long as your greasy fingerprints and scratches aren't on it.
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Old Jul 15, 2005
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Originally Posted by tacheon
The gas molecules are really irrelevant in terms of causing your wiring to melt. It is the flow of electrons which causes the wiring to melt and subsequent damage to the vehicle to result. The purpose of applying an inert gas such as krypton is to prolong the life of the filament, this doesn't make your wiring any cooler as running higher current (wattage) bulbs heats up your entire lighting system wiring, not just the bulb. Hence my junk science comment above.

When the tungsten filament is in operation, it reaches temperatures high enough to vapourize it. To slow down this process and prevent bulbs from burning out, an inert (non-reactive) gas such as krypton under pressure is used. However in automotive bulbs as well as other high performance bulbs, a halogen gas is used in conjuction (iodine, bromine, chlorine, etc). To make a long story short, the halogen helps scrub the inside of the bulb clean of tungten deposits at high temperatures (in operation) and helps to return the tungsten to the filament as the bulb cools (when its off). The glass is a special quartz glass which is made to withstand these high temperatures so it won't shatter as long as your greasy fingerprints and scratches aren't on it.
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