The life jacket light is a light fixture composed of main components such as lampshade, lamp holder, luminous body, circuit board, battery, and connectors. It is suitable for indicating the position of drowning personnel wearing life jackets to rescue personnel at night. Its performance complies with the current regulations of China's "Code for Lifesaving Equipment on Seagoing Ships" and "Code for Signal Equipment on Seagoing Ships", as well as the provisions of the International Convention for the Safety of Life at Sea, which came into effect in 1986.