It is the prototype of all lighthouses in the world.
Neuwerk, containing some marshland protected by dikes, has two lighthouses and a lifeboat station.
On the Ness two lighthouses have been built at different levels, the lights of which are visible at 13 and 16 m.
The difficulty of connecting lightships and isolated lighthouses to the mainland by submarine cables, owing to the destructive action of the tides and waves on rocky coasts on the wll- shore ends, led many inventors to look for a way out of the difficulty by the adoption of some form of inductive Smith.
Stevenson, who in 1892 advocated the use of the inductive system pure and simple for communication between the mainland and isolated lighthouses or islands.