Extremely powerful five LED taillight. Light and durable co-molded lens/body construction. Unique aero and round post compatible design. Five market-leading, ultra-high-output LEDs delivering up to 100 lumens. Mode Memory function returns to selected mode after turning off. 9 combined lumen and flash modes. Enhanced MOR (Maximum Optical Reflection) lens with built-in side visibility. Integrated cable-free recharging USB stick.