Surefire E1B Backup Dual-Output LED Flashlight 400/5 Lumens Surefire Ultra-compact E1B-MV is part of Surefire's best-selling Backup line, originally developed as backup lights for law enforcement pros. This everyday-carry light sets itself apart from the rest of the Backup family with its useful MaxVision Beam, created by a faceted reflector that shapes the LEDs light into a seamless wall of light thats perfect for closer-range applications and maintaining situational awareness. Uses a single 123A disposable battery to power this field-of-vision-optimized beam at two outputs 400 and 5 lumens, and is programmed to lead with high output. Hard-anodized aluminum body, tailcap pushbutton switching, lockout tailcap, and two-way pocket clip that allows for bezel-up or -down carry. FEATURES: --High-performance LED MaxVision Beam --Constructed of high-strength aerospace aluminum with Mil-Spec anodizing; stainless steel pocket clip; coated, tempered window --Weatherproof O-ring and gasket sealed --Powered by a single energy-dense 123A battery with 10-year shelf life (included) Backed by SureFire's No Hassle Guarantee SELECT SPECS: --Output / Runtime - White Light -High: 400 Lumens / 1.25 hours** -Low: 5 Lumens / 50 hours* --Length: 3.87 inches --Bezel Diameter: 1.13 inches --Weight w/Battery: 2.95 oz. --Battery: 1 x CR123A (included) * Runtime per ANSI standard USA