High-capacity solar-powered marine signal light with a 2200mAh battery delivers long-lasting illumination to reliably mark your area through the night. Efficient operation on a low-voltage system: 3.7V with charging current of 60mA and discharge current of 180mA, designed for energy-efficient performance in marine environments. Weather-ready design: IP65 rated, providing full protection against dust ingress and low-pressure water from any direction, suitable for foggy conditions and temperatures from -10 to 50 C. Powerful visibility: 8 high-intensity LEDs deliver clear visibility from 0 to 2.0 km, making it an essential portable navigational aid for safe maritime operations. Portable and practical: designed for marine use as a warning light or marker on boats, buoys, or temporary work zones. Use scenarios: - Nighttime marking for anchored vessels, moorings, or hazard zones on open water. - Signaling in fog or low-visibility conditions to aid safe entry into harbors. - Temporary markers for docking, construction, or hazard delineation in harbors or coastal areas.