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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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Philips 327817 35-watt T15 SOX35 Low Pressure Sodium HID Light Bulb - High Intensity Discharge Bulbs - Amazon.com
Sola E-SZA00W100 - 100 Watt - 120-277 Volt - HPS Ballast | CityLightsUSA.com
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Philips Advance 71A0590500D :: Core & Coil Ballast, Low Pressure Sodium, 90W, 120-277V :: PLATT ELECTRIC SUPPLY
Advance 71A7971-001D - High Pressure Sodium Ballast - 70W | Energy Avenue
HID Lighting – A Technical Overview | BeanAnimal's Reef
electrical - How to plug in a Philips Low Pressure Sodium Bulb using a Ballast - Home Improvement Stack Exchange
