FOURSEVENS Maelstrom Regen MMR-X 800 Lumen Burst Mode; 1X 18650; Cool White LED Light, Black Finish Brightness Levels: Moonlight: 1 lumen, 35 days Low: 25 lumens, 40 hrs High:150 lumens, 8 hrs Max:Burst at 800 lumens, 1 minute then 400 lumens, 2 hrs Special Modes: Strobe: 800 lumens at 10hz, 40 hr SOS: 800 lumens, 4.5 hrs Beacon High: 800 lumens, 12 hrs Beacon Low: 150 lumens, 80 hrs Included accessories: Holster, 18650 battery (2600mah), USB power adaptor (USA plug), USB cable, lanyard, spare orings, spare rubber boots, flat black bezel, parts for flat tailcap Lens Material: Optical-grade glass lens, sapphire coating, antireflective coating Body Material: Type-III hard-anodized aircraft-grade aluminum