* Max 300 lumens / 53.5 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* Micro-USB rechargeable* IPX7 water resistant co-molded design