led underwater flashlight Cree LED U2 IPX68 Could work underwater 60meters 1,200 Lumens output work with 2*18650 Battery led underwater flashlight #BR-DIV-XCree LED Diving Torch / diving flashlightLight source :Cree LED U2 white colorIntensity:1,200 lumens outputDimensions:L:197mm D: 45mm (head) * 30mm(tail)Could work at least under water 150meters.Use 2pcs 18650 batteries,and could last 3-4hours ...