FOURSEVENS Mini AA/ MA Black Finish / High CRI LED; 1XAA; 90 Lumens Brightness Levels: Low: 2.7 lumens, 60 hrs/Medium: 25 lumens, 8 hrs/High: 90 lumens, 1.3 hrs Special Modes: Strobe: 4 hrs/SOS: 12 hrs/Beacon Hi: 20 hrs/Beacon Lo: 100 hrs Included accessories: Battery, lanyard, split ring for keychain attachment, spare o-ring Lens Material: Optical-grade glass lens with antireflective coating on both sides Body Material: Type-III hard-anodized aircraft-grade aluminum