Marine navigation lights are essential safety devices used on ships and boats to indicate a vessel’s position, direction, and status, particularly during nighttime or in low-visibility conditions. These lights help prevent collisions by signaling a vessel’s movements to other nearby vessels. They are color-coded—typically red for port (left), green for starboard (right), and white for stern and masthead—ensuring that vessels can be correctly identified and navigated around. By adhering to international regulations regarding the use of navigation lights, mariners can significantly reduce the risk of accidents and ensure safe navigation on the seas.