* Max 150 lumens / 57 hour runtime in Flash mode. * New 800 mAh battery. Larger battery, longer runtimes.* New mounting style to fit shorter seat posts with USB plug and cable.* Wide angle optics with 270 visibility for maximum safety.* Aero seat post compatible.* Lightweight and durable.* Detects when you are breaking to emit a bright light alerting others you're stopping* IPX7 water resistant co-molded design.