Cygolite Velocity Pro rechargeable headlights. This powerhouses light up pitch black roads and trails for complete coverage. The 8-step battery fuel gauge adds full time battery awareness while USB-C charging powers up quickly and easily. Its ultra sleek, anodized aluminum alloy body gives maximum durability and performance optimizing heat transfer for the perfect blend of brightness, ruggedness, and compact style. With an all-new versatile 35mm capable mount that's designed for over and under handlebar mounting, the Velocity Pro gives the most customizable and illuminating performance on every ride. Battery: 21700, 1 Lithium Ion Rechargeable, 3.7(V), 17.76(Wh), 70g, IncludedCycling Tuned Optics throws a long range, extra wide beam for road and mountain biking9 adjustable lighting modesPowerful daytime visible flashesUSB-C rechargableIP67 tested waterproof aluminum bodyOSp - On Site Programmable technology lets users fine tune each brightness mode and flash speedBattery Fuel GaugeLong lasting 1:30 to 100 hour run timeItem SpecificationsBatteryLi IonLumens Front1600Recharge TypeUSBWeight194 CygoLite Velocity Pro Headlight Headlight, Rechargeable UPC: 745025036282