On 9 September 2018 Japan Post issued these five stamps along with a mini sheet. The first and last stamps show Kannonzaki L/H which is a major navigational beacon at the southwest entrance to Tokyo Bay near Yokosuka. The second stamp shows Mikomoto Shima L/H. The next one, Muroto Shima L/H and finally He Shima L/H which is located at the western end of Japan’s Inland Sea and is one of the oldest lighthouses in Japan.
See more lighthouse stamps from Japan here