SOLAR-X-6NM is a self-contained solar LED marine lantern that brings dependable aids-to-navigation lighting to coastal and harbour applications with no wiring and no external power. The integrated solar panel and lithium battery keep it shining through long stretches of bad weather, and the daylight sensor plus magnetic switch make set-up and storage simple. Power, range and flash character are easily adjusted over Bluetooth 5.0, while GPS/BDS synchronisation and optional NB-IoT or 4G monitoring support larger networks of lanterns. Rugged and maintenance-friendly, it suits light buoys, channel markers, harbour entrances and offshore installations.