FOURSEVENS Preon 2 P2Satin Titanium Finish / Cool White LED G2/ 2XAAA; 192 Lumens Brightness Levels: Low: 2.2 lumens, 23 hrs/Medium: 22 lumens, 6 hrs/High: 160 lumens, 0.8 hrs Special Modes: Strobe: 1.6 hrs/SOS: 4.8 hrs/Beacon Hi: 8 hrs/Beacon Lo: 40 hrs Included accessories: Batteries, split ring for keychain attachment, spare o-ring Lens Material: Optical-grade glass lens with antireflective coating on both sides Body Material: Titanium