Super Bright output with a road specific beam to illuminate the darkest of rural roads and large battery for tricky commutes or longer tours in the saddle.Road Specific Beam uses dual lenses to deliver an optimum beam for road cycling with a flat beam for the periphery and a spot beam lighting the way ahead, which can by dimmed for oncoming traffic via a wired handlebar mounted switchAn OLED display panel gives program mode information and battery status, including run time. When charging, the display will show the remaining time to full chargeOptimized Mode Selector provides multiple programs for choice of run times and modes so you can find the right one for your ride2-36 hr run time