Bust on through the night with Sigma's Buster 200. This USB-rechargeable powerhouse sports 200 lumens of easily portable power, so you can light the road ahead of you, and be seen in traffic. It features 6 modes: power, standard, eco, flashing, fast flashing, and SOS flashing. The Buster has up to a 8-hour battery life (SOS flashing mode), and comes with a super-adjustable and easy-to-use quick-release mounting bracket.
Run time (power/standard/eco/flashing/fast-flashing/SOS flashing): 2/3.5/7/6/5.5/8 hours