Ah, so they're just the normal headlights then.
I've got Halfords 50% extra bulbs in mine (BOGOF).
They're as good as the Osrams I had before, and cheaper.
They'll only make the lights brighter though, they won't help the abrupt cut-off on dip.
You need to adjust the lights for that (little white wheels on top of lights).
New A3s fitted with Bi-Xenon headlights have a 21w bulb fitted in the unit on the inside of the main headlamps for use as Daytime Running Lights.
I think you've mentioned in past posts about visiting the Czech Republic this summer. I think you will find that DRLs are required by law in that country and a number of others in Europe including Austria. It is also currently a Government recommendation that they be used at all times in France, Holland and Germany. If your new Alpina is not fitted with them you will need to drive on dipped headlights at all times in those countries.