The G2X Pro is a compact yet powerful polymer-body flashlight that features a high-efficiency LED - practically immune to failure since it has no filament to burn out or break. It offers two light output levels: a bright, penetrating, perfectly focused 600-lumen beam, and a 15-lumen low-output setting that greatly extends runtime per set of batteries. This is a vital option when you're far from civilization. Press the tail cap switch for momentary low, press further to turn on steady low, return to off, and press or click again within two seconds for high. The durable Nitrolon polymer body is smoothly designed for a comfortable, secure grip and resists scratches, abrasion, and corrosion. A polycarbonate micro-textured reflector provides a wider beam with ample peripheral light.