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Medium Pressure Mercury Vapour amp Tuopeek
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Westinghouse 400w Mercury vapor lamp - LitBulbman256
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Thorn-EMI 50W HPS lamp with pearl outer envelopeRia
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Osram-GEC 400W MA/H LampRia
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Osram-GEC 280W Dual Arc Tube SOI/H Lamp (lit)Ria
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Clear induction lampMax
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The first and the lastMax
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2011 Philips UHP 400WMax
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Smallest UHP in operationMax
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Blue Soviet pixel tubeMax
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First Philips high-pressure sodium lampMax
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Mid-1990s Philips MSR 4000 HRMax
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1943 GEC MBF/V 80WMax
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Early-1980s Philips SOXS 18WMax
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GEC 60W SLI/H Linear Sodium LampRia
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