SureFire G2 lights are built on a foundation of high-efficiency LED emitters, precision reflectors, and corrosion-resistant polymer bodies, all of which are virtually indestructible. The G2X Pro is the most versatile model and comes with a low output of 15 lumens for less important tasks, which helps extend the runtime. It also has a 600-lumen high output that can illuminate any dark environment and provide the necessary ambient light to maintain situational awareness. Its press/click tailcap switch allows for momentary-on activation and constant-on activation. As a result, the G2X Pro is a powerful and durable performer that can meet the critical requirements of emergency first responders.