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Philips 30229-9 - LU50 - 50 Watt - White SON - High Pressure Sodium - PG12 Base - ANSI S104 - SDW-T 50W/LV - - Amazon.com
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Lighting-Gallery.net - 3...2..1 Lamps in action.../Philips SON-T PIA PLUS 150w and 50w lamps warming up at the same time in C-131 lanterns
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