The Fenix PD22 Ultimate Edition is a limited production offering that redesigns the popular Fenix PD22 format. This reproduction amazes with twice its original output (510 lumens). This is a very bright light for its diminutive size and weight. It’s extremely compact size and mighty output allows power and everyday carry to be combined. Weighting less than 2 ounces and measuring less than 4 inches long, the PD22UE can deliver this maximum output from a single CR123A battery or a single 16340 rechargeable. I currently EDC a couple different Fenix lights and they are great performers. We plan to get one of these lights to EDC and provide more information to you.