Lights are used to dress the ship by stringing them from the jackstaff to the mastheads, and down the flagstaff.

Mediterranean or friendship lights

Explanation:

This is the light that is used to hoist a flag on the ship when there is any festival. Dressing a ship means to hoist a flag in order to celebrate any festival or occasion. It is conducted in the presence of the Navy Commanders and other high ranking officers. The size of this flag is directly dependent on the length of the ship. They are usually about 10×20 feet in case on bigger ships and in the case of smaller ships, it is about 5×10 feet.