*Cree XM-L2(U2) LED, 950 lumens output *Uses two 26650 batteries *120 degrees super wide floodlighting, no blind angle for underwater photography *Water pressure resistant construction ,depth rated to 150 meters *Battery canister is separated from the light , easier to carry *Totally sealed magnetic switch offers high waterproofness and easy operation underwater *High efficiency constant current circuit, constant brightness *Reverse polarity protection, to protect from improper battery installatio *The latest diamond grade hard-anodized seawater-corrosionresistance finish *Aircraft-grade high strength aluminum material *Toughened glass with two-side coating *Over-discharge protection function