FOURSEVENS Maelstrom X10/ MMU-X Black Finish / Cool White LED; 1XRCR26650; 640 Lumens Brightness Levels: Low: 100 lumens, 15 hrs/High: 640 lumens, 1.8 hrs Special Modes: NA Included accessories: Spare-O-rings, holster (Battery and Battery Charger NOT included) Lens Material: Optical-grade glass lens, sapphire coating, antireflective coating Body Material: Type-III hard-anodized aircraft-grade aluminum