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2. Point Stephens Light - Wikipedia

   en.wikipedia.org/wiki/Point_Stephens_Light

   In 1973, the lighthouse keeper was replaced by automated system powered by solar. [9] There three lighthouse families living there were two month supply of food and barge called Bomb Snow in case they would cut off due to rough seas. [9] In 1990, b following a 1989 failure of the submarine cable and problems with the diesel generator, the light ...

3. Isle au Haut Light - Wikipedia

   en.wikipedia.org/wiki/Isle_Au_Haut_Light

   The lighthouse remains in service as of 2008. The current optic for the light is a 9.8 inches (250 mm) solar-powered lens which flashes red every four seconds with a white sector covering the safe channel. The original fourth order Fresnel lens is at the Maine Lighthouse Museum in Rockland, Maine. [3]

4. Hooper Island Light - Wikipedia

   en.wikipedia.org/wiki/Hooper_Island_Light

   Along with many other Chesapeake Bay lights, automation came in the early 1960s. In 1976 the original fourth-order Fresnel lens was stolen, and it was replaced with a solar-power lamp. [3] The lighthouse was added to the National Register of Historic Places on December 2, 2002, as Hooper Island Light Station. The structure was officially turned ...

5. Harbor of Refuge Light - Wikipedia

   en.wikipedia.org/wiki/Harbor_of_Refuge_Light

   After the Fresnel lens became outdated, the house was fitted with a DCB-36 Aerobeacon operated by commercial power. This was used from about 1945 until 1997, when it too became outdated. Today the tower operates with a Vega VRB-25 operated by solar power and displaying a flashing white light every 10 seconds and is visible up to 19 miles (31 km ...

6. Aerobeacon - Wikipedia

   en.wikipedia.org/wiki/Aerobeacon

   DCB-224 - Two Harbors Light. The model DCB-224 is a high-power spotlight designed and built by Carlisle & Finch. [1] Originally intended for use as an aerodrome beacon, it was also widely used in marine lighthouses. Depending on the type of bulb installed, the beam could be seen for 18 to 26 nautical miles (33 to 48 km).

7. Baltimore Harbor Light - Wikipedia

   en.wikipedia.org/wiki/Baltimore_Harbor_Light

   The Baltimore Harbor Light, officially Baltimore Light and historically Baltimore Harbor Lighthouse is a privately owned caisson lighthouse in the Chesapeake Bay in Maryland. [ 2 ] [ 3 ] [ 4 ] First lit in 1908, it sits at the mouth of the Magothy River , marking the channel which leads northwest to the opening of the Patapsco River , which ...