Commonly known as deck prism, ship deck lights are fixtures inserted into the deck of a ship to offer light below decks. For many years, sailing ships took advantage of these fixtures as source of natural light for illuminating the area below the decks. When in use, the prism hangs just below the overhead while dispersing the light sideways. Initially, the glass used for making ship deck lights were made colorless by adding manganese oxide. For sailing ships, the importance of ship deck lights cannot be overemphasized.Read More