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The High Pressure Sodium Lamp (HPS)

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Uploaded by on Dec 14, 2011

How it works, inventors, variations. This lamp is the most popular lamp for street and outdoor lighting in the world due to its high efficiency and acceptable color rendering. The lamp has an arc tube made of Lucalox. It uses mercury and sodium vapor combined to create a yellow-pink light. It was invented in Schenectady and Nela Park. See more videos about the electric light at YouTube/EdisonTechCenter

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  • not amil-gam

  • it's pronounced Ah-mal-gum

  • I caught the amalgam thing during shooting but he wanted to say it his way. It is like when GE told Steinmetz no smoking, and the reply was: "No cigar, no Steinmetz"... ok ok

  • FYI, amalgam is pronounced: Uh mal' gum, not Am' uhl gam.

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