Halogen lamps have about 99% inert gas and about 1% halogen vapour.  For efficiency the filament needs to be very hot and the inert gas should not conduct this heat away.  The usual inert gas is Argon or Krypton.  The most effective is Xenon although this is the most expensive, it gives a vastly increased lamp life.

This lamp (bulb) is in all respects a normal halogen bulb except that the inert gas used is Xenon.   these lamps give off more light than a normal halogen.


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Code 1402

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