As an important regional shipping hub, Batulicin in Indonesia is confronted with complex Marine environments such as high salt fog, strong ultraviolet rays, changeable wind and rain, and continuous overcast and rainy days (with an average annual humidity of 76% and wind force reaching above level 9 in extreme weather), which poses strict requirements for the weather resistance, endurance and reliability of navigation beacon equipment. To ensure the safety of vessel navigation in this sea area and improve the maritime navigation sign system, the project party ultimately chose our company's solar-powered navigation lights as the core navigation AIDS.