The Bolt Light is a special collaboration between Brian Fellhoelter, Tuff-Writer and FOURSEVENS, with a unique and innovative user-interface. While most flashlights rely on a traditional push-button switch, the Bolt Light uses a sliding bolt mechanism, allowing you to turn the light on and off, or change modes, with an easy and natural swiping motion. With three brightness levels and four special output modes, the Bolt Light is versatile enough to meet the needs of a variety of situations. DIMENSIONS Length: 5.83 inches Diameter: 0.71 inches Weight (without batteries): 2.7 oz LED EMITTER CREE XM-L2 VOLTAGE RANGE 2.7V -8.4V BRIGHTNESS LEVELS Low: 59 lumens, 8 hrs High: 490 lumens, 1.2 hours Strobe: 490 lumens, 2.4 hours SPECIAL MODES S.O.S.: 6 hrs Beacon (High): 15 hours Beacon (Low): 23 hours Moonlight: 1 lumen, 102 hours REFLECTOR Smooth BODY MATERIAL Type-III hard-anodized aircraft-grade aluminum BEZEL MATERIAL Type-III hard-anodized aircraft-grade aluminum LENS MATERIAL Optical-grade glass lens with antireflective coating on both sides. Comes with original packaging. Excellent condition.