Direction Light (2)
Alternative term: Single Station Range Light (U.S.A.)
A direction light (2-5-235) bounded by other sectors of different character which define its margins with small angles of uncertainty.
Most commonly the bounding sectors are of different colours (red and green). (Fig.46b)
Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)
International Association of Marine Aids to Navigation and Lighthouse Authorities - AISM