They only have HID full beams as they have a bixenon setup where the same bulb does both dipped and full beam, and adjusting the angle of the bulb changes between the two. Therefore the bulb remains on when using them at night. In the case of seperate bulbs for dip and main, a HID bulb doesn't have chance to warm up properly with the sort of interval main beams are used for, and is therefore as useful as a choccy teapot.
Plus illegal HIDs yadda yadda yadda
Yeah I know sorry I was thinking about my Vento headlights.
You can get the bi-xenon H4 bulbs, so same job.
Not that I'm going to, just saying.