LED set: Multi-purpose performance LED cycling light. Compact, durable and heat-dissipating CNC machined aluminum construction. Ultrahigh-output LEDs delivering up to 500 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 built-in side visibility. Integrated cable-free recharging USB stick. Versatile strap securely mounts to all standard bar shapes, including aero bars. Advanced Li-Poly battery for superior run time. + Compact, high visibility safety light with two ultra bright LEDs. Durable, waterproof construction. Super lightweight. Provides up to 10 lumens and three output/flash modes. Extended for 180 degrees of visibility. Unique aero and round post compatible design. Integrate USB stick for convenient cable-free recharging.