Durable Solar Navigation Beacon

Dimensions: not specified; Weight: not specified; Battery: 1800mAh rechargeable lithium battery; Solar panel: polycrystalline silicon; Housing material: transparent PC with dual waterproofing (rubber gasket + thread glue); Light output: high-brightness LED with three-colour strobe function. Built around proven marine engineering principles: the housing integrates structural rigidity and optical efficiency — the transparent PC allows full LED output without diffusion loss, while the sealed internal cavity protects electronics from condensation, salt creep, and thermal shock. The 1800mAh battery is rated for hundreds of charge cycles, supporting multi-season service life when paired with proper solar exposure. This beacon serves both regulatory and practical needs: it satisfies minimum visibility requirements for non-powered vessels under COLREGs Annex I (where applicable), while also functioning as a practical tool for recreational users — marking swimming zones, anchorage perimeters, or temporary work areas without permitting or electrical certification. Its simplicity makes it accessible to private boat owners and harbour authorities alike.