3 X Cree XM-L XML T6 U2 LED Underwater 4000 Lumens Scuba Diving Flashlight Waterproof Torch Submarine Light 18650 Battery Powered Swimming Diver Scuba Dive Lamp This torch uses 3 x CREE XM-L U2 LED, producing very bright beam of light. Output bright can come to above 4000 lumens. This flashlight is built of aircraft-grade aluminum alloy, and it has a very solid construction. Intelligent circuit control, it is adjustable light control when pushing button in the middle Widely used in diving, fishing, swimming, mountain climbing, camping, hiking Hard anodized finish,Anti-abrasive, free-scratch, shock-proof. Ultra-deep trench structure with skid-proof effect is excellent when diving.