Description 166 lumen output7 hour runtime143 meter (469 ft) beam distancePure Beam (tm) Focusing Optic System; Twist Focus3 X AAA batteries (included)Aluminum casing; Rubber Rear SwitchImpact and water resistant5.8 ounces (including batteries)4.8 inch lengthDiameter: Body - 1.19 inches; Bezel - 1.46 inches