Quark Mini 123 1XCR123A 189-Lumens Cree XP-G R5 LED Flashlight Black LED: CREE XP-G R5. Battery: One CR123A Seven Output Modes. Max Output: 189 Out-the-front (OTF) lumens/1.2 hours. Material: Type-III Hard-anodized Aircraft-grade Aluminum. Lens: Optical-grade glass lens with anti-reflective coating on both sides. Dimensions: Length - 2.3", Diameter - 0.80", Weight - 0.62oz. (w/o battery)