The Fenix E18R is an upgraded V2.0 pocket-sized flashlight with a high-efficiency lens that puts out a bright and soft flood light for great illumination at a close range. The E18R runs on one AA battery, widely available worldwide and has a black anodized aluminum body that has an IP68 rating and impact resistant to 1 meter. The push button tail switch is for quick lighting performance. The Fenix E18R is a great outdoor flashlight that is small on size but big on utility. Features: Uses one AA battery (INCLUDED) Two position pocket clip. Submersible with an IP68 rating and impact resistant up to 1 meter.