Primus ULTRA-BRIGHT Rechargeable 1200 Lumens, Bicycle, Helmet Light, ALL NEW FEATURES, Adjustable, GOPRO mount Compatible!! Mounts anywhere! Most usable light on Amazon, LIFE-TIME WARRANTY!! GO-PRO Compatible Mounting System! Super Secure mounting with No Tools!! ULTRA BRIGHT 1200 Lumen CREE LED Technology - This Bike Light with new 6400mAh battery gets Approximately 3-1/2 Hours on High, 6 hours on medium, 24 hours on Low BEST BIKE LIGHT SET for BIKING / HIKING / LONG BOARDING / AIRSOFT / MOTORCYCLE / SKI and SNOWBOARD LIFETIME GUARANTEE ON BICYCLE HEADLIGHT / 1-YEAR WARRANTY ON BATTERY - NO QUESTIONS ASKED!! EXTERNAL RECHARGEABLE WATERPROOF 6400mAh BATTERY - Allows Our Light to Out Power The Competition