This flashlight is cetlus, atex, and iecex listed intrinsically safe for use in both above and below ground hazardous locations where explosive gases and dusts may be present. The XPP-5420GX uses a cree LED rated at 210 lumens that works in conjunction with a high-efficiency deep parabolic reflector to create a usable flashlight beam rated at 187 meters. The single body switch provides momentary or constant-on functionality. Power comes from 3 aa batteries (not included).