The G2X LED illumination tools from SureFire have several features in common, such as highly durable LED emitters, a maximum output of 600 lumens, and a regulated emitter for maximum output and runtime. They also have a tactical-level max output and extended runtime low output. Additionally, they feature a precision reflector that creates a smooth, optimized beam with plenty of reach and surrounding light. The package includes 2 extra Surefire CR123A batteries (2 factory installed) and a Lightjunction battery case.