These are called carbide lamps here. And when you run out of the carbide then all the water in the world won't give you light. They were very popular with miners a hundred years ago, and my mother had several of them flow through her antique business, all of them solid brass and still working.

The downside was they had an open flame and in a mine they would set off explosions of flammable gases or coal dust. My off the cuff guess is they are illegal in mines now.

TEd