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Vintage mercury vapour discharge lamps with E40 GES screw caps. Old or retro lightbulbs. Retro. Steampunk, High pressure mercury, medium pressure Stock Photo - Alamy
Feit Electric 175-Watt ED28 Shape Clear Mercury Vapor High Intensity Discharge E39 Mogul Base HID Light Bulb (1-Bulb) H39KB-175/HDRP - The Home Depot
mercury-vapor lamp - Wikidata
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The Mercury Vapour Lamp
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Vintage mercury vapour discharge lamps with E40 GES screw caps. Old or retro lightbulbs. Retro. Steampunk, High pressure mercury, medium pressure Stock Photo - Alamy
ELECTRIC LAMPS - PART - 07 - OPERATION OF HIGH PRESSURE MERCURY VAPOUR LAMP - YouTube