Conclusion: Found! Should I have been buying much earlier.
Together with the light travel dynamo BM DYMOTEC 6 I now have a super bicycle front light, which even at low speed, a very bright and very good illumination in comparison to my previous halogen (!!) - provides illumination with standard dynamo. Again: Comparing pre / post (halogen): (!) 500% better (you can not compare really).
Advantages: Even at low speed bright light through the integrated parking lights Battery is (drive 500m) after a short loading time given a constant flicker and bright front illumination, less power loss / effort by the light travel dynamo (it shows really).
PS: Was me previously also uncertain and spent hours scouring the net for information on whether the slightly more than EUR 100, - for front + rear + Dynamo worth => Yes, it's worth it!
