FENIX UC35 V2.0 2018 upgrade USB Rechargeable 1000 Lumen CREE LED Flashlight, 3500mAh rechargeable battery, USB charging cable with 2 X EdisonBright CR123A back-up batteries bundle 1000 Lumen max utilizing Cree XP-L HI V3 LED with lifespan of 50,000 hours Uses one 18650 rechargeable Li-ion battery or two 3V CR123A Lithium batteries Micro-USB charging for the 18650 rechargeable battery (3500mAh battery included) Boot-up battery level indication and low-voltage warning function This bundle includes 2X EdisonBright CR123A Lithium Batteries for backup use.