* Max 400 lumens / 21 hour runtime in Flash mode (Front)* Max 150 lumens / 57 hour runtime in Flash mode (Rear)* Lightweight and durable.* IPX7 water resistant co-molded design.* Five ultra high-output LEDs. * Ten combined lumen and flash output modes. * Highly disruptive Daytime Flash mode. * USB stick rechargeable* Multiple mounting options* New 800 mAh battery* New mounting style to fit shorter seat posts with USB plug and cable.* Wide angle optics with 270° visibility for maximum safety.* Rear light is aero seat post compatible.