- Easy operation and energy storage: converts sunlight to electricity for storage, delivering continuous energy and reliable lighting even in low-light conditions - Long-lasting power and visibility: 1800mAh lithium battery powers high-brightness LED beads, providing a consistent long-distance flash for up to 20 days on a single charge - Durable waterproof construction: transparent PC housing with two waterproofing methods (built-in rubber gasket and thread glue) for a complete enclosure that resists salt and alkali - Efficient solar charging: polycrystalline silicon solar panels enable fast charging cycles and improved energy storage efficiency - Compact marine-ready design: lightweight, compact housing designed for marine environments - Practical applications: on boats or ships as a signaling beacon; on buoys, markers, or moorings for night visibility; on docks or piers to enhance safety during low-light conditions