SureFire has developed the superlative everyday-carry tactical light. The Defender lives up to its name in more ways than one. Machined from aerospace aluminum, its crenelated Strike Bezel(R) and scalloped tail cap turn this robust illumination tool into a potential impact object. This is built tough with only the best materials and can take a beating while you're on the job or dish it right back if necessary. The Defender body also features a Type III Mil-Spec hard-anodized coating for abrasion and corrosion resistance in foul weather or other adverse environments. A bolstered dual-function pocket clip makes bezel-up or bezel-down pocket storage easy too. Just clip it onto your pocket! The dual-output E2D Defender Ultra (E2DLU-A) utilizes SureFire's virtually indestructible high-performance LED. The very heart of these slender and powerful lights, it pumps out an intense, 1,000-lumen beam, precisely focused through our optimized Total Internal Reflection (TIR) lens. That's plenty of output to momentarily disorient virtually any adversary and gain a crucial tactical advantage. The Ultra adds the extra value of dual-output capability. Clicking its tail cap twice yields a battery-saving 5 lumens, ideal for the most basic low-light tasks such as map reading and other close-range applications. And with a continuous low-output run time of 63 hours, you can trust the Ultra to keep you company from sunset to sunrise.