The Orca Torch D611 is a primary canister dive light specially designed for scuba and cave diving. The light head is connected by a cable to the battery canister containing two 3.7V 4000mAh 26650 batteries, allowing you to mount the battery canister to your equipment, so you only need to hold the small light head when using it. This highly portable, high output and long runtime light is a must for the serious technical diver. The unique magnetic switch gives multiple output modes to meet different diving conditions and needs. The Orca Torch D611 provides 2400 lumens of brightness at full power for an intense and penetrating light beam from a CREE XHP70 LED Lamp. The light beam distance is 823.5′ (251 meters) on land. Totally sealed magnetic switch offers high waterproofness and easy operation underwater. The light has a depth rating of 490′ (150 meters). The light provides a 78° wide beam with a penetrating center 14° beam angle from its alloy aluminum reflector with professional optical analysis design. Reverse polarity protection, to protect from improper battery installation, and over-discharge protection function makes this one great light. Built-to-last from type III military tough aircraft-grade high strength aluminum material with the latest diamond grade hard-anodized seawater-corrosion-resistance finish and two sides 0.16″ (4 mm) coated toughened glass lens. The light has three output/runtime modes of high, medium and low. At full power, high mode,