The ATAC PLx Tactical Pen Light is an extremely versatile and lightweight product. Includes a tactical Momentary-On switch and throws a brilliant 69 ANSI FL1 Lumens of light in a smooth beam pattern while providing over 3 hours of runtime. Compatible with the 53144 - ATAC Belt Clip/ Holster Accessory. Tested To ANSI FL1 Standard. (2) AAA Duracell Batteries Included. Regulated Circuit for Maximum Output. Cree XP-C LED. Gold Plated Contacts. High Mode with Momentary-On Switch. Water Resistant Construction. Stamped Metal Pocket Clip. Aerospace Grade Aluminum.