4Sevens Maelstrom X7 Flashlight; Black; 480 OTF lumens; 2xCR123A or 1x18650 Maximum Output: 480 OTF lumens Material: Hard-anodized Aircraft-grade Aluminum Lens: Optical-grade glass lens with anti-reflective coating on both sides Battery: Two CR123A or One 18650 Seven output modes: Moonlight, Low, Medium, High, Strobe, SOS, Beacon