Just got myself one of these puppies:

http://www.exposurelights.com/produc...4/maxx-d-mk.4/

Built like a tank, and on dark country roads I'm being yielded to from a 1/4 mile away And unlike most other high-lumen lights out there, this one is an all-in-one, self contained unit. No cords, not battery pouch, etc. Quick release mechanism and you're good to go! 3 intensity levels, plus strobe mode.