SureFire G2XDYL G2X Pro Yellow 15/600 Lumens White LEDPrepare 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