Quickly, not to bore you w/ verbiage: Commuter, bike tourer, car free, etc. have a few headlamps, which IMHO are the way to go for biking too. First, avoid Princeton Tec "fuel" headlamps. Once you have a catastrophic breaking of the battery door, or search it, you'll avoid those particular headlamps. Secondly, now, avoid Princeton Tec, altogether: Their policy is to send you new doors; you'll need a needlenose pliers, and if night time, you will nedd to bring ANOTHER light( wish there were italics) to perform the task. For this reason go elsewhere for your lighting requirements. Defeats the purpose of convenient, reliable light.