Originally Posted by
angerdan
You're blinding car drivers even when you're running it at medium and moving the beam downwards. There's a reason why car headlights use reflectors for light distribution and beam shaping.
A good bicycle light with even 1500lm is this:
https://www.bikeforums.net/electroni...nd-lights.html
I guess I didn't explain my experience accurately. When I used this light the first time, I realized immediately that 1200 lumens is too bright for oncoming cars and I turned it down to low, angled it down, and turned it toward the shoulder. I also avoid turning the handlebar so that the light is pointing toward traffic. Sorry for the confusion.
I'm still curious about why anyone would need 3000 lumens, which is brighter than many car headlights.