When you overtake a lad out training on his bicycle and his light creates a van shadow in your path, you know there's an issue.
I spoke to VW CC about H4's and they flatly denied that there is a problem - 'nothing in the Knowledge Base Sir!' The reason for that is they are in total denial, its only going to get recorded when they accept there is a problem.
I'm expecting a follow up call on my other woes in a week or so, I'll make sure that he knows that it's a widespread concern both here and on the German forum.
My main bike light is 1700 lumens. That's brighter than most car lights on main beam.