High power rear lighting for commuting, road cycling and Time Trial. DayBright flash pattern to cut through distractions of busy roads to alert other road users. High capacity battery for substantial burn times.Features USB convenience, a choice of 6 burn times and side illumination for 180 _visibility.In the box: Blaze MK2 Daybright, Seatpost bracket, USB charge cable, Quick start guideExposure Technologies: OMS, ITM, CFD, Fuel GaugeKey Features:Output:LED Configuration: 1 x Red XPE-R Cree LED,Lumens: Max 80/With ReAKT 150,.Battery:Battery: 1500 mAh Lithium-Ion,Runtime: 6hrs - 48hrs,Rechargeable: Mains and USB,Charge Time: 3hrs,.Construction:Weight: 77g,Anodised 6063 Aluminium,Water Resistance IPX6,.Dimensions:Length: 70mm,Head Diameter: 28mm.