High-performance multi-purpose LED cycling light. Compact, durable and heat-dissipating extruded and machined aluminum body. Two market-leading, ultrahigh-output LEDs delivering up to 1100 lumens. Optimized Constant Lumens system maintains steady lumen output throughout battery cycle. Optional Overdrive Race Mode toggles between Overdrive and Economy modes only. Mode Memory function returns to selected mode after turning off. Enhanced MOR (Maximum Optical Reflection) lens with built-in side visibility High-speed 2 Amp USB charging capabilities (with compatible wall adapter). Versatile handlebar strap secures to round and aero bars. Advanced Li-Ion battery for superior run time.