Acebeam X45 is an absolutely amazing flashlight. It powered by 4*18650 High Discharge IMR batteries(Included) and utilized 4*Cree XHP70 P2 LEDs,super high output reaches 16500 lumens and ultra-long distance goes 583 meters. The side switch is controlled all functions through easy one-handed operation. X45 is the brightest light in Acebeam's brightest line, widely used in many fields such as search and rescue,camping,hunting and self-driving. X45 will become your invincible companion and bring you unparalleled outdoor illumination experience.