Princeton Tec Quad Headlamp is the lightest in Princeton Tec's line of regulated-LED headlamps at a mere 96 grams. 4 Ultrabright LEDs power through the darkest conditions. The LEDs are forever inside a tough waterproof housing that will survive severe impacts and water submersions up to 1 meter. Princeton Tec Flashlights are built with the highest quality materials to ensure long-lasting performance. The wide beam of the Quad is perfect for tasks around camp and is bright enough for technical scrambles and brisk runs on dark trails. Weight conscious users will love the Quad's sophisticated circuitry that allows the use of lithium AAA batteries. They reduce the Princeton Tec Quad's weight to 82 grams, perform in extremely cold temperatures, and significantly increase regulated burn times on all modes. Equipped with regulated LEDs that maintain constant brightness and a battery power meter, this flashlight may just be smarter than you are. Ideal for climbing, running, paddling, caving, camping and work.