New technical developments in street lighting described include 400 w lamps developed by Osram (GEC) with average light output of 36,000 lumens mounted at height of 35 ft: new sodium lamps of 200 w were increased by 50% to 6000 burning hours and 25,000 lumen; introduction of high mast lighting at heights of 80 to 100 ft.
Recent developments in street lighting
Traffic Eng Control
Traffic Engineering and Control ; 8 , n 2
1966
2 pages
Article (Journal)
English
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