Basic product parameters: Material: aluminum alloy Gross weight: 533 grams Net weight: 375 grams Voltage: 3.7V Power supply: 4 x 3.7V 18650 lithium battery Waterproof rating: IPX-8 Maximum diving depth: 100 meters Lamp beads: 15 XM-L2 lamp beads + 6 red XPE lamp beads + 6 blue LED XPE lamp beads Maximum lumen output: 15000 lumens Light source angle: 120 degrees Surface treatment: three-stage hard anodizing XM-L2 white light pearl color temperature: 6000K XPE red light color temperature: 620NM XPE blue color temperature: 455NM Land illumination distance: 350 meters Underwater lighting distance: 100 meters - 150 meters Lighting position: high light / medium light / low light / red light / red flash / blue light / red and blue flashing Lens material: 6mm double coated hard PC glass Features: 1. Professional underwater photography fill light, using high-quality white light XM-L2 lamp beads + XPE red light + XPE blue light beads, let you in the dark underwater, like white, is the best choice for divers. 2. The product provides 2 kinds of brackets, which can be installed on different equipments. It is convenient to carry and use underwater. 3. Not only under water, it is also a powerful searchlight on land, ideal for camping, adventure, and other outdoor activities. Package included (please choose the color you like) No battery: 1 x Diving light 1 x Handle bracket 1 x Bracket 2 x waterproof ring 1 X screw With battery: 1 x Diving light 1 x Handle bracket 1 x Bracket 2 x waterproof ring 1 x screw 4 x 3.7V 18650 lithium battery 2 x 18650 battery charger(EU/US/AU/UK)