Originally Posted by
mtnwalker
I finally upgraded my light with a Magicshine EVO 1300 for night riding. The difference is this light has a cutoff line which seems to focus the light better to what matters: what's in front of you. it's got 4 settings: low, medium, high and flood. High is 650 lumens and it is plenty bright and good for 4 hours of continuous use(per manufacturer) and flood is 1300 lumens for 2 hours. While riding, my light at High is actually brighter compared to some cars passing me.
Car lights have regulated limits, bike lights don't.

Car limits used to be for USA, IIRC, 55W low and 65W highbeams, I think both sealed beam and halogen bulb, but that's power and not light, and the same power in LED lights should be WAY brighter, and I don't know how they are currently spec-limited.