I'm quite happy with my Niteriders. I have a 350 and 500 set up so I have a low beam and high beam. The 350 is fine for actually lighting up the road enough to see. When I'm going faster, I'll add the high beam. I tend to run them both at the same brightness setting, but the high beam is set a little higher up to illuminate a bit further up the road. I can easily reach them while I'm riding.