Underwater Fishing Light Durable and portable construction: Made from rustproof PP, lightweight and easy to carry. A silicone Oring enhances waterproof performance, allowing operation at depths up to 2100 feet. Long lifespan: Delivers over 400 hours of use, significantly longer than typical glowtype lights. Its bright flashing output is visible underwater to attract fish. 360degree illumination: Emits light in all directions, penetrating deep water to attract fish. Effective for deepsea fishing as well as night fishing in lakes, ponds, or rivers. Replaceable battery: Powered by a No.5 battery. When power runs out, you can directly the internal battery for continued use. Practical benefits: Simple to use, reliable in demanding underwater conditions, and designed to help improve bite rates with consistent visibility. Applications Deepsea night fishing at depths up to 2100 feet, where widearea illumination helps attract offshore fish. Night fishing in freshwater environments such as lakes, ponds, and rivers to draw fish toward your lure. Fishing from a boat or shore at night or in lowlight conditions, enhancing lure visibility for more encounters.