The Starboard Navigation Signal Light, typically a green light, is an essential component of marine navigation safety, indicating a vessel's right side to other ships and aiding in the prevention of maritime collisions. These lights are designed to be highly visible, with a luminous intensity of 60cd and a visibility range of 3 nautical miles, ensuring they can be seen from a considerable distance. They are also built to withstand harsh marine environments, with features like corrosion-resistant materials and automatic drainage systems to expel water. The specifications for such lights are often standardized by international conventions, like the COLREGS, which dictate the placement and standards for navigational equipment on ships to facilitate safe and efficient sea travel.