The Taz 800 is an incredibly powerful self-contained, handlebar mounted light. This compact unit delivers an outstanding 800 Lumens and conveniently charges via USB, making it an ideal option whether you are dealing with downtown traffic or shooting off onto a secret little stash of trails. Special settings include Cruise mode which cycles through High, Medium, Low and Flash sequentially, and Race mode which skips the Medium and Flash modes, allowing you to conserve battery power on the climbs while keeping the High setting just a click away for the descents. Run times vary from two hours on the high setting (800 lumens), four hours on medium (400 lumens) to eight hours on the low setting (200 lumens.) 216 g.