The Fenix E18R is a powerful flashlight in a compact body. Powered by a 16340 lithium-ion battery, it has a maximum output of 750 lumens at 446 feet. The battery is charged through the specialized magnetic charging cable. The E18R also includes a lockout function which prevents accidental activation while in the field. The E18R has a durable, high-strength, oxidation-resistant aluminum body and is IP68 waterproof rated.