They are ordinary QH bulbs, I believe, with a blue coating.
Gas-discharge headlight bulbs (xenon) are not a plug-in option. They
use a very high voltage.

If you've made the mistake of buying some & the shop won't refund
your money, try cleaning the blue off with acetone... then you'll
have decent bulbs.

I can't be sure that acetone (2-propenone) will dissolve the coating,
but it is most likely that it will. Clean them well.