What type of light is associated with submarines?

Submarines use an intermittent flashing (yellow/amber) light as a visual signal to indicate their presence, especially when they are operating near the surface. This type of light is crucial for safety, as it helps to alert other vessels to the submarine’s position, particularly in crowded or navigationally complex waters.

The yellow or amber color is distinctive and designed to stand out, thereby enhancing visibility against the backdrop of the ocean and ensuring that other mariners can take appropriate action to maintain safe distances.

While other lights are used for different purposes in marine navigation and safety, they do not specifically signify the presence of submarines. The steady red light, for example, is commonly used for navigation aids and other vessels but does not convey the same warning as the flashing yellow light specific to submarines.