This pro-line model of BioLite headlamp puts you in complete control of your illumination thanks to Constant Mode, Run Forever pass-thru charging, and 8 different lighting modes that enable you to see and be seen on your next adventure. This headlamp a max output of 750 lumens, 150 hours LOW, 7 hours HIGH, 8 hours RESERVE. This head light has a 3000 mAh li-ion battery which recharges via micro USB. This headlight features a dimmable rear and front red visibility light with solid & strobe. BioLite HeadLamp 750