Prepare For Any Emergency. Virtually indestructible high-efficiency LED emitters, 600 lumens of maximum output, precision reflectors, and sleek, corrosion-resistant polymer bodies are the foundation of every SureFire G2 light. The G2X Pro is the most versatile of the series. It features a useful low output of 15 lumens for less critical tasks while extending runtime. Its 600-lumen high output can also reach far into the darkness to light up any environment while also providing the surround light you need to maintain situational awareness. Its press/click tailcap switch provides useful momentary-on activation as well as constant-on activation. The G2X Pro is a powerful performer that’s durable enough to satisfy the essential needs of any emergency first responder.FEATURES: Two output levels — low for extended-runtime, high for maximum light, Low to high output sequence initiated by a momentary press or full click of the tailcap Virtually indestructible LED emitter regulated to maximize output and runtime Tough, lightweight polymer body for corrosion resistance and durability High-strength aerospace aluminum bezel is Mil-Spec hard-anodized for extreme durability O-ring and gasket sealed for waterproof and weatherproof reliability Includes high-energy 123A batteries with 10-year shelf life SPECIFICATIONS: Key attributes High output: 600 lumens High runtime: 1.5 hours Peak beam intensity: 8,700 candela Batteries: Two 123A (incl.) Switching: Click tailcap Length: 5.2 in (13.2 cm) Output High output: 600 lumens High runtime: 1.5 hours Low output: 15 lumens Low runtime: 52 hours Distance: 187 meters Body Construction: Polymer/aluminum Finish: Mil-Spec Hard Anodized Weight with batteries: 4.4 oz (125 g) Bezel diameter: 1.25 in (3.2 cm) Liquid ingress protection: IPX7 Product Downloads User Manual