SureFire Guardian Ultra High Output Incandescent Flashlight Ultra-high-intensity flashlight ideal for tactical, duty, or searchlight use Produces 250 lumens of light for 1 hour or 500 lumens for 20 minutes (with included lamp) Brilliant, pre-focused long-range beam offers more than 12 times the light of D-cell flashlight Rugged, aerospace-grade, hard-anodized aluminum body in olive drab Measures 7.9 inches long and weighs 15.9 ounces; lifetime warranty