The Lezyne Super Drive 1500 XXL is a super high-performance cycling light engineered for all types of night riding. Incredibly durable, heat-dissipating CNC machined aluminium construction. Three market-leading, ultrahigh-output LEDs delivering up to 1500 lumens. Optimized Constant Lumens system maintains steady lumen output throughout battery cycle. Optional Overdrive Race Mode toggles between Overdrive & 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 (Universal Serial Bus) charging capabilities (with compatible wall adapter). Ultra rugged & pliable strap securely mounts to all standard bar shapes, including aero bars. Advanced Li-Ion battery for superior runtime. Specification: Max Lumens: 1500 Weight: 345g Max Runtime: 148 hours (in Femto mode) Recharge Time: 6 hours