- Convenient to use: the sea navigation light safely illuminates dark areas by automatically flashing at night or on overcast days, powered by solar energy for uninterrupted use. - High capacity battery: powered by high brightness LED beads and an 1800mAh lithium battery, this solar strobe light provides consistent long distance flash for up to 20 days on a single charge. - Strong and reliable: made from transparent PC material, this solar strobe light uses two waterproofing processes with a waterproof seal and integrated rubber bonding to create a complete enclosure, and is resistant to salt and alkali. - Improved solar panel technology: advanced polycrystalline silicon panels improve energy absorption and storage efficiency, allowing fast cycle and operation for optimal performance. - Use scenarios: suitable for night navigation to mark hazards or courses, for extended mooring or docking in cloudy or low-light conditions, and for signaling and visibility on open water during long trips.