"End All Bike Headlights" this will not; it is a "be seen" light, not a "see at night" light. For that, you absolutely need a lithium- or dynamo-powered light with lots of throw and LEDs that output a few hundred lumens (not 40-60 as shown here, which is easily beaten by cheap alkaline-powered lights).<p>My solution is a $20 18650-powered flashlight (200 lumen) from DealExtreme attached to my helmet. At maximum, it is so bright that car drivers honk at me, and it can blind oncoming bicyclists. For this reason, I run it at medium unless I'm alone in pitch darkness. It is also very weather-resistant, and because it is attached to my helmet, it is never left on the bike for someone to notice a crime of opportunity. It is also much easier to read street signs when I can just point my head at them.<p>At best, this will be useful for the city bicyclist who rarely travels at night.