- High-capacity solar marine signal light: 2200 mAh battery provides long-lasting illumination to reliably mark your marine area through the night. - Weather resistant design: IP65 rated, dust-tight and protected from low-pressure water jets from any direction; operates in fog and a temperature range of -10 to 50 degrees Celsius. - Efficient operation: low-voltage 3.7 V with a charging current of 60 mA and a discharge current of 180 mA, optimized for energy-efficient performance in marine environments. - Bright visibility: 8 high-intensity LEDs deliver clear visibility up to 2.0 km, serving as a dependable navigational aid. - Solar-powered and cable-free: self-contained power source suitable for remote locations and boats without external power. - Practical use scenarios: - Mark a mooring, channel, or hazard area at night to improve situational awareness. - Signaling in fog or low-visibility conditions to help other vessels locate you. - Emergency beacon for small boats, remote piers, or during power outages.