First experimental installation of sodium-vapor lamps in America; sponsored jointly by General Electric Co and New York Power and Light Corp; installed on Balltown Road near Schenectady; demonstration embodies result of many years of research in United States, England, Holland and Germany; 22 lighting units installed, although not more than 18 will be lighted at any one time; 80 to 90 w lamp gives 4000 lumens. (See also Elec News v 42 n 16 Aug 15 1933 p 23;)
Sodium lamps for highway lighting
Electronics
Electronics ; 6 , n 7
1933
Article (Journal)
English
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Highway lighting by aid of metal-vapor lamps
Engineering Index Backfile | 1934
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