* Cree XHP70 LED, 2400 lumens output *Uses two 26650 batteries *Battery canister is separated from the light , easier to carry *Totally sealed magnetic switch offers high waterproofness and easy operation underwater *Water pressure resistant construction ,depth rated to 150 meters *High efficiency constant current circuit, constant brightness *Reverse polarity protection, to protect from improper battery installation *Low battery warning function *Over-discharge protection function *Aircraft-grade high strength aluminum material *The latest diamond grade hard-anodized seawater-corrosion resistance finish *Alloy aluminum reflector with professional optical analysis *Toughened glass with two-side coating