Originally Posted by
fietsbob
Have someone point one in your eyes and dee how you can drive your car afterwards..
I tried that. I had my son on the bike and I came at him in my car, this on my relatively dark street. It is blindingly bright. I always point mine down and away, which worked OK.
At the few intersections when I'm stopped where I really do point straight at oncoming cars I always put my hand over it.