What is the difference between a lighthouse and a light station?

A lighthouse is the tower itself containing the lantern room with the lens that shines its light. A light station (which is usually onshore, but occasionally on offshore islands) is the property containing multiple outbuildings of the "station", as well as the lighthouse tower itself. There were usually separate living quarters (houses), depending on the number of lighthouse keepers and assistants living there. Besides these there would probably be an oil (or fuel) house, a barn, a boathouse, and a fog-signaling building.

Lights with no families living in them, (called "stag lights" in some areas) were usually located on offshore islands or reefs, and inhabited by men only. Their quarters for sleeping, eating, and recreation were located on the various levels of the lighthouse itself. One room was located above the other and a winding staircase connected them. It was pretty confining to have to live in that one building, especially in the days before the invention of the telephone, radio and TV.

Tenders re-supplying lighthouses