UGOE Ugoe Ultra Powerful 1200 Lumens Waterproof 4 Working Modes LED Headlight / Bike Light Set with Li-Ion Battery Pack a(Gray),mout easily on helmet or handlebar SUPER BRIGHT CREE LED AND UNIMAGINABLE RUN-TIME - CREE LED bulb, UGOE special manufactured reflector, wide brightness range 7200mAh high-quality battery, lasting about SIX HOURS at100% brightness model at the normal (25C) temperature . EasyINSTALLATION AND MULTIFUNCTION installationinsecondswithoutanytoolsMounttiedwithadjustablerubberstrapfitsa wide range of handlebar diametershandlebarandensuresbestpossiblelightingangle; SAFTY AND DURABLE  The light is using aircraft aluminum material so that keep light IP65 weatherproof shockproof .It is extremely durable and indestructible, even on the toughest terrains. One year warranty on Everything, get a full Refund or a Replacement! MULTI-FUNCTIONAL USE---FOUR MODEL. Can be use in different situation, compatible with jogging, skiing, off-road and any outdoor sports.