High-capacity battery: 2200mAh capacity powers this solar-powered marine signal light, delivering long-lasting illumination to reliably mark your marine area through the night. Weather-ready design: IP65 rated, protecting against dust ingress and low-pressure water from any direction; works in fog and in temperatures from -10C to 50C. Powerful LED visibility: 8 high-intensity LEDs provide clear visibility from 0 to 2.0 km, making it a dependable navigational aid for safe maritime operations. Efficient operation: operates at 3.7V with a charging current of 60 mA and a discharge current of 180 mA, designed for energy-efficient performance in marine environments. Use scenarios: - Mark navigation channels and hazards at night for boats and small vessels. - Deploy on buoys or moorings to improve visibility in fog or poor weather. - Attach to docks or shorelines to provide a warning light for remote marinas or work sites.