Terms & Glossaries of Shipping and Trading

Anchor Light

White light displayed by a ship at anchor. Two such lights are displayed by a ship over 150 feet (46 m) in length.

What is Anchor Light?

An anchor light is a light displayed by a ship at anchor. Anchor lights are required by law in many settings, and strongly recommended in others, because they are an important part of the safety systems used to ensure that sailors are aware of the location of boats, and know what those boats are doing, even in poor visibility. Many stores which stock sailing supplies and equipment carry anchor lights, and such lights are also typically installed on ships and boats when they are manufactured.