I always use my MiNewt 600 on high because my wife says I'm on a power trip. But when I'm riding down the street and a car passes me on the left going my direction, it is clear that my light is brighter, sometimes much brighter, than most car's low beams. I think there's others in this forum that have said oncoming cars flash their brights, although that has never happened to me. For the price, the 600 Cordless is a monster.