Nils Gustaf Dalen won a Nobel Prize for a lamp that goes on by itself at dusk, 1st used at the Furuholmen one of these
Gustaf Daln
... [DOC] [TLE] Gustaf Daln - Wikipedia [PAR] Nils Gustaf Daln (30 November 1869  9 December 1937) was a Swedish 
Nobel Laureate and industrialist, the founder of the AGA company and inventor of 
the AGA cooker and the Daln light.