The ATN Javelin J600 tactical flashlight is the most powerful flashlight in the ATN lineup projecting an incredibly bright 600 lumens. Lightweight and well-balanced, the Javelin J600 is ideal for professional use and a powerful tool for the outdoor enthusiast. The flashlight casing is constructed with heavy duty 6061-T6 aluminum alloys and can be used during an emergency as a glass breaker or a self-defense tool. Four 3-Volt Lithium batteries are included.