I always got along with good H4 light in earlier years. The new problem, in my opinion, is that many new cars with LED light are so bright...even if their headlights are adjusted correctly, I can't see the road in front of my Morgan without LED light on board.
Good point there Heinz, I sometimes feel I'm screwing up my eyes to compensate for the oncoming bright headlights, If a high 4x4 is following that also causes rear view mirror blindness