Soonfire X6 Bike Headlight:4 X CREE XM-L2 LED,4500 Lumens with An Effective Range of 269 Mmeters,8000mAh (6 X 18650) Rechargeable Batteries, Extra Long Battery Life EXTREMELY BRIGHT 4500 Lumen 4xCREE XM-L2 LED - This Bike Light approximately 6 Hours on High, 15 hours on medium, 30 hours on Low EXTERNAL RECHARGEABLE WATERPROOF BATTERY - Allows Our Cycling Flashlight to Outshine The Competition EASILY INSTALLS IN SECONDS - No Tools Required. Quick Release For Anti-Theft HIGH-QUALITY! All aluminum-alloy. Won't rust or corrode. The light set will not only keep you safe and illuminate your path, it will also last longer WIDE-ANGLE LIGHTING,FLOODLIGHTS GREATER!A wider horizontal field of vision, meeting the demand for advance warning of greater than or equal to 120km/h riding