Powerful light system with safety side lighting and an environmentally friendly USB rechargeable battery.Lumen Output: 700Run Time: High - 1.5, Med - 3, Low - 6, Pulse - 12 HoursHandlebar and Helmet mount includedCruise mode cycles through High, Medium, Low and Flash sequentiallyRace mode skips the Medium and Flash modes, to conserve battery power on the climbs while keeping the High setting just a click away for the descentsBattery charge indicator reliably reports the charge statusSafety side lighting provides added visibilitySingle cell Li-Ion, USB rechargable batteryDue to various DOT requirements for shipping lithium-ion batteries, light sets powered by Li-ion batteries can be shipped by air in boxes weighing less than 5kg (11lbs) (Replacement Li-ion batteries, NOT included as part of a light set, can be shipped via ground only)|Item SpecificationsWeight112gBulbLEDRun Time6 HoursBatteryLi-Ion,USB Rechargeable,Li-Ion,USB Rechargeable