Light output: High - 251 lumens; Low - 58 lumens - Runtime: High - 5 hours 45 minutes; Low - 10 hours - Beam distance: High - 196 meters (642 ft); Low - 66 meters (216 ft) - 4 X AAA batteries (included) - Aluminum casing; Rubber rear switch - High and low output modes - Impact and water resistant - 7.2 ounces (including batteries) - 5.54 inch length - Diameter: Body - 1.24 inches; Bezel - 1.49 inches - 19279