LED set: High-performance LED cycling light. Compact, durable and heat-dissipating machined aluminum body. Two market-leading, ultrahigh-output LEDs delivering up to 1100 lumens. 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 side visibility. High-speed 2 Amp USB charging capabilities (with compatible wall adapter). Versatile strap securely mounts to all standard bar shapes, including aero bars. Advanced Li-Ion battery for superior run time. + Lightweight and durable CNC machined aluminum body. Constant Lumens power management produces a steady lumen output. Powerful single-LED provides up to 180 lumens with integrated Side Visibility. Integrated USB stick for convenient cable-free recharging. Snap-fit composite matrix mount with silicone strap attaches to a wide range of bars and posts.