HID bulbs or Xenons should have self levelling and headlamp washers to gain European type approval.
and also specific lenses
^^^ as above, it has been well-documented in other threads. requirements include:
*projector (fish-eye) lenses
those of you claiming to have passed MOT have projector lenses:
*164 Series II
*147 with projector lenses (looking at avatar)
if you passed, and do not have projector lenses, you were lucky!
156 does NOT have projector lenses (except GTA).
seems that MOT inspects only the beam pattern. nothing to ensure there are washers or self levelling. pretty silly really.
anyway, the requirements are there for GOOD REASON. as has been eluded to, you can dazzle oncoming traffic if they are not properly 'masked' and are not appropriately dipped (eg: if carrying rear passengers/load).
BE CONSIDERATE to other drivers.
note: sorry to be preaching from the land Down Under, but we have the same requirements over here.