OK so no one has commented on the use of European design lens with replaceable H4 style bulbs, So check out the link below. In European countries especially Germany, they like high quality light for the high driving speeds of the autobaun. True Euro lenses (not the fad crap you find on the fart can, rice rocket, kid junk) are a quality designed beam pattern that has a sharp horizontal cut left of center on low beam to keep light out of other drivers eyes, and has a beam cut off that is at 15degrees upward angle from center to the right to illuminate the shoulder,street and warning signs. Hella makes such a light, 7", glass precision lens, and metal reflector. these will be going into my truck with true HID bulbs that use ballast and have the servo operated bulb positioner for High/low operation. I will try to find an illumination picture/pattern.
http://www.autobahnpower.com/products.asp?recnumber=422
OH BUT THEY ARE NOT D.O.T. certified, apparently they want you using an inferior beam here in the U.S.