FENIX UC40 Ultimate Edition USB Rechargeable 960 Lumen Cree LED Flashlight with, 3400mAh rechargeable battery, USB charging cable and EdisonBright Battery sampler pack.(CR123A/AA/AAA) Tri-fuel capable: USB charging/18650 Li-ion cell or two CR123A batteries Tailored 3400 mAh/3.6V rechargeable Li-ion battery Uses Cree XM-L2 U2 LED with a lifespan of 50,000 hours Side switch in the head for fast and convenient operations Bundle includes EdisonBright Battery Sampler pack