Light up the road or trail with Lezyne's compact, powerful Power Drive XL. It's built with a CNC machined aluminum body, MOR Optics, and Constant Current power management that drives the LED at a steady 400 lumens. It features an easy-to-change battery compartment and a power indicator button that allows the user to check the power level any time. You can choose between economy (125 lumens/7 hours) enduro (250 lumens/3.5 hours), blast (400 lumens/2 hours) and flashing modes to optimize power. And it includes a handlebar mount.