The E2DL Ultra is a Pocket Protector with more than double the output of it"s predecessor now at 500 lumens on high courtesy of it"s new, slightly larger LED and TIR lens. It still has hard anodized aluminum teeth, aka Strike Bezel, which can be used for self defense should a blast of blinding white light not be enough to repel an aggressor. This Defender model also puts out five useful lumens of light on low and is armored in a Mil-Spec hard anodized aluminum body that features a steel two way pocket clip.