This is Tektite Trek Pro Aluminum Hi-Power LED Light Flashlight This Fantastic Light features: Depth Rating: 2,000 feet (615 m), IP68M Lamp: Hi-Power LED Lamp Life: 10,000+ hours Burn Time: 20 hours at full power with additional hours of usable light Batteries: 3 AA Alkaline (included) Power: 250 Lumens CE (European Union compliant) Materials: Anodized Aluminum and LEXANA(R) Dimensions: 7.37" (19 cm) L x 1.25" (3 cm) Dia. Weight: 0.35 lbs. (0.16 kg) Individually serial numbered U.S. Patent #6,168,288(expired) Made in the U.S.A. (complies with the "Buy American Act", may contain imported components). Lifetime Warranty Computer machined from a solid bar of Aluminum, the Trek(TM) PRO Aluminum is an extremely compact and versatile light that packs all the quality and performance of our ExpeditionA(R) Star Aluminum into a small AA housing. This LED light is the most rugged light of its size anywhere, and is a great emergency, hiking, camping, backpacking, or toolbox light; anywhere a durable light is a necessity. 3 AA Alkaline batteries (included) provide 20 hours of light at full power with additional hours of usable light. Double O-ring seals give this waterproof light an underwater depth rating of 2,000 feet (615 m). Includes, at no additional charge, an adjustable cushioned wrist lanyard and rubber glare guard/Candle Stand,