The G2X Pro is a compact yet powerful polymer-body flashlight that uses a high-efficiency LED—virtually immune to failure since there's no filament to burn out or break—to provide two light output levels: a brilliant" penetrating" perfectly pre-focused 320-lumen beam" and a 15-lumen low-output setting that lets you greatly extend the runtime per set of batteries" an invaluable option when you find yourself miles from civilization. Press the tail cap switch for momentary-on low" press further to click constant-on low" return to off and press or click on again within two seconds for high. The tough Nitrolon® polymer body is smoothly sculpted for a comfortable" secure grip and resists scratches" abrasion" and corrosion. A polycarbonate micro-textured reflector delivers a comparatively wider beam with generous peripheral light.