Weatherproof and reliable for marine use - IP65 rating; protects against dust ingress and low-pressure water jets from any direction. Works in fog and in a temperature range of -10℃ to 50℃. Efficient, low-power operation - 3.7V system with a charging current of 60mA and a discharge current of 180mA. Designed for energy-efficient performance in marine environments. Bright visibility when it matters - 8 high-intensity LEDs deliver clear visibility from 0 to 2.0 km, providing an essential navigational aid for safe maritime operations. Long-lasting, solar-powered power - High-capacity 2200mAh battery. Solar-powered marine signal light ensures long-lasting illumination to reliably mark your marine area through the night. Portable and practical - Compact, portable beacon designed for boats, moorings, channels and other marine applications. Built to operate in harsh marine conditions without mains power. Use scenarios - Nighttime mooring or docking for small boats and dinghies. - Navigation or hazard marking in foggy coastal channels. - Temporary marking for offshore work sites, rescue exercises or training operations.