There are 40 (20 pairs) of range lights in the PEI lighthouse family. Each pair of range lights includes a front range and a rear range and mark the entrance to a harbour. Range lights were used by boat captains to pilot their craft safely into harbour by visually lining up the front and rear range lights to get their heading. For this reason, the front range is typically shorter and the rear range is taller. Range lights often have a vertical red stripe on them as day marks to help the pilot visually line up the pair of lights to find their heading.
One range light – Leard’s Front Range in Victoria-by-the-Sea has been converted to the Victoria Seaport Museum.