The Hecto 500XL It features built in cooling fins and cutouts for side visibility. Its single LED design provides up to 500 lumens of output and eight output modes-including a Daytime Flash mode. Runtime is up to 20 hours. Charging is simple with an integrated cable-free USB stick.Battery: 1, 803030 Lithium lon Rechargeable, 3.7(V), 2.4(Wh), 12.9g, IncludedSecurely straps to a variety of handle bar shapes and sizes8 lighting modes allows you to dial in the preferred brightness needed or extend run time depending on the conditionsItem SpecificationsBatteryLi IonColorBlackLumens Front500Recharge TypeUSBWeight84 Lezyne Hecto Drive 500XL Headlight Headlight, Rechargeable EAN: 4712806002176