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.