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 
