HQRP® 390 nM Diving LED Flashlight + HQRP® UV Chain / UV Radiation Health Tester; * Material: Stainless Steel, High-density Engineering Plastics, PMMA Lens; 3 watts; * Wavelength: 390-395 nanometer; Powered by 4 x AA batteries (not included); * Waterproof, Submersible IPX8 - to Depth up to 328 Feets; Magnetic Rotary Switch; * 200 days Warranty!