Fenix RC11 1000 Lumens Rechargeable Cree XM-L2 U2 LED Flashlight w/ 1x 18650 Rechargeable Battery, USB Charging Cable and 2x LumenTac CR123A Battery Utilizes Cree XM-L2 U2 LED with a lifespan of 50,000 hours and produces a maximum 1000 lumen beam with a 208 yard throw Powered by one included 18650 rechargeable Li-ion battery or two CR123A Lithium batteries can be used under emergency circumstance Magnetic suction charging port in the neck, one included 18650 rechargeable Li-ion battery plus Low-voltage warning reminds when charging or battery replacement is needed Uses single-switch for fast and convenient operation as well as Lock-out function to avoid accidental operation and Intelligent over-heat protection to avoid high temperature of the surface Includes flashlight, Rechargeable 18650 Battery, USB charging cable, & 2x Lumentac CR123A Batteries (Backup use only, Do not Charge)