Fenix HP30 900 Lumen CREE XM-L2 LED Headlamp (Iron Grey) with Four EdisonBright CR123A Lithium batteries Max 900 lumen output using Cree XM-L2 LED with a lifespan of 50,000 hours Uses two 18650 batteries or four CR123A batteries 60-degree tilt mechanism Battery box USB port stands ready to power critical navigation and communication devices. Four EdisonBright CR123A Lithium batteries included in bundle.