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Poly casing， stainless steel core; IPX8 waterproof， 3 meter drop tested; 5.75 inches; 6.4 ounces; 4 X AAA batteries (included)
Pure Beam Focusing Optic -- Twist Focus Technology
On High: 300 lumen light output， 1 hour runtime， 194 meter (636 ft.) beam distance
On Medium: 105 lumen light output， 3 hour and 15 minute runtime， 113 meter (370 ft.) beam distance
On Low: 33 lumen light output， 15 hour runtime， 62 meter (203 ft.) beam distance