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The Low Pressure Sodium Lamp
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Philips Advance 71A07F0-500D :: Core & Coil Ballast, Low Pressure Sodium, 135/180W, 347/480V :: PLATT ELECTRIC SUPPLY
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144287 | Bailey Lights Low Pressure Sodium Bulb 90W 1800K 13600lm BY22d 525mm | Distrelec Switzerland
Low Pressure Sodium Lamps (SOX-E, SOX)
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Long row of low pressure sodium street lights on the M60 motorway near Stockport looking north. Light trails, repetition, pattern. UK road Stock Photo - Alamy
Sodium-vapor lamp - Wikipedia
Sodium-vapor lamp - Wikipedia
