Quark MiNi CR2, R5; Titanium; 180 OTF lumens; 1xCR2 LED: CREE XP-G R5 Max Output: 180 Out-the-front (OTF) lumens Material: Polished Titanium Battery: One lithium CR2 (3V) (TWO batteries included!) Seven Output Modes: Low, Medium, High, Strobe, SOS, Beacon (hi), Beacon (lo)