Surefire G2X Pro Dual Output LED Flashlight 600/15 Lumens Surefire - Chose by elite professionals whose job and very life depend on only the best. The G2X Pro is a dual-output version that features the same lightweight, ergonomically shaped body. It boasts an identical 600 lumens of high-output, but it also features a useful low-output of 15 lumens that lets you extend the runtime per set of batteries. The G2X Pro comes with a press/click tailcap switch. Features *Virtually indestructible LED emitter regulated to maximize output and runtime *Brilliant tactical-level max output and, useful extended runtime low output *Precision reflector creates smooth, optimized beam with plenty of reach and surround light *Tough, lightweight Nitrolon polymer body for corrosion resistance and durability SELECT SPECS: --Output / Runtime -- White Light --High: 600 Lumens / 1.5 hours* --Low: 15 lumens / 52.0 hours* --Length: 5.20 inches --Bezel Diameter: 1.25 inches --Body Diameter: 1.00 inches --Weight w/Batteries: 4.4 ounces --Batteries: 2 x 123A (included) USA