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Street lamp / light / lights / lamps of an older sodium technology, soon to be replaced by LEDs. (96 Stock Photo - Alamy
Sodium | Elements | RSC Education
The Sodium Lamp - How it works and history
Sodium street lamps in the winter on the drive home. : r/nostalgia
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Low Pressure Sodium Lighting - Flagstaff Dark Skies Coalition
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Sodium vapor lamp Facts for Kids
Sodium-vapour street lights - Stock Image - C010/2500 - Science Photo Library
Sodium vapor lamps, often used for illuminating highways to deter crimes, emit the light of wavelength of precisely 589 nanometers.
Sodium Vapor Lamp : Circuit, Working, Types & Its Applications
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File:2014-11-17 16 49 43 Sodium vapor street light on West Cedar Street in Elko, Nevada.JPG - Wikimedia Commons
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Sodium-vapor lamp - Wikipedia
Street Bulb: Over 86,102 Royalty-Free Licensable Stock Photos | Shutterstock
Sodium vapor light hi-res stock photography and images - Alamy
