SUPER COMPACT, ULTRALIGHT and WATERPROOF! Ideal for backpacking as well as every day carry. Made from MIL Spec HA Aircraft Aluminum Alloy body and Cree LED controlled by Tactical / Magnetic rugged tail cap switches. Operates in High, Medium and Low modes. Weighs less than 0.5 oz and 3 inches long. Includes both Tactical and Magnetic tail cap switches, key chain lanyard and 2 spare waterproof body 'O' Rings. Cree XP-G2 R5 LED, 50,000 hours life Modes: High - 110 Lumen 30 minutes 154 feet Medium - 30 Lumen 4 hours Low - 5 Lumen 36 hours Waterproof rating IPX8 Impact rating 5 feet Battery 1 AAA (not included) Weight 0.5 oz (w/o battery) Length 2 7/8 inches Magnetic / 3 1/4 inches Tactical Maximum Diameter 9/16 inches Warranty 3 years