Just my view but all LED headlamps are very bright. They generally don't dazzle people on dipped beam because of the exceptionally sharp cutoff of light above a certain level/distance. This cutoff line is very apparent on the rear valance of any car you may be following, as noticed on both my Roadster and our three year old Mini.
Richard, you make an interesting point about cut-off on dipped beam. My Volvo has active bending lighting and very bright lights although they are not LEDs. The cut-off on dipped beam is severe and when following traffic at night on unlit roads at a distance suitable for the speed one is travelling at this leaves a totally black space between to top of the cut-off and the preceding vehicle which is very disconcerting. I have been told by a number of people that in this situation they leave their main beams on irrespective of whether there is oncoming traffic.
My lights on main beam are excellent but I would be much happier with a bit more light spill on dipped beam if it wasn't too intrusive for the car in front or, indeed, oncoming traffic.
