Item Type: Scuba Diving Light LED: 1 x lamp beads Brightness: 2000LM Battery: 1 x 18650 battery (not included) Product Size: Head Diameter: Approx. 42cm / 16.5in, Length: Approx. 13cm / 5.1in Lighting Mode: High light, medium light, low light, flash, SOS (tighten to light up, loosen for half a turn and turn off, then tighten again to change levels) Waterproof Depth: Approx. 100m / 328.1ft underwater Waterproof Grade: IPX8 Material: Aluminum alloy Weight: 179 g / 6.3 oz(approx.) 1、PROFESSIONAL PHOTOGRAPHY FILL LIGHT: 2000LM ultra high lighting provides fill light for photography. Designed to be lightweight and portable for professional photography. Can really illuminate the pristine colors of underwater objects, allowing divers to take the pictures they want 2、MULTIPLE FUNCTIONS: This light greatly enhances the professionalism and variety of the light, which is the ideal equipment for professional photography and underwater diving photography 3、SAFE AND LOW POWER: Using imported chips, constant current drive circuit, with unique safety device, greatly improving safety and low power protection function of professional microcomputer chip power indicator 4、CORROSION RESISTANT ALUMINUM: Adopt aviation aluminum material, the hard anodizing treatment of the shell can prevent seawater corrosion 5、WIDE RANGE OF APPLICATION: Suitable for diving, underwater fill light, can also be used for fishing, hunting, underwater, fishing, salvage, camping, etc.