Low pressure sodium street lamp against a dusk sky Stock Photo - Alamy
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Philips Lighting 151167 Low Pressure Sodium Lamp, 180 W, LPS Lamp, BY22d Lamp Base, T21 Shape, 32000 Lumens | Steiner Electric Company
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Ben Krasnow on Twitter: "You can still buy low pressure sodium lamps (eg on Amazon), but the ballasts are expensive and rare. I found that using a cheap CFL ballast, and replacing
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The Sodium Lamp - How it works and history
126 Watt LPS Replacement PC Amber 16-Inch Area/Wall/Flood Light
Low Pressure Sodium Vapor Lamp - First Strike - YouTube
