Thank you for writing to me what are halogen car bulbs.

Car halogen bulbs means put halogen gas inside.

Frankly speaking, car halogen bulbs are all using “Krypton or Xenon” gas.

Although haogen gas is sky price now, my factory still put enough gas for our car halogen bulbs.

So the life time of our car halogen bulbs is longer.

In order to make you clearly waht are halogen car bulbs, I will show you pictures as below.

Hope you come to get more details about halogen car bulbs as soon as possible.