thelightingman
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All lighting except LED rules!
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I have always wondered what it means.
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I think HPS, MV, and MH rule! Ban LED instead! 
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Ash
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Pi Lamp. Shape of the tube = Greek letter Π (Pi)
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thelightingman
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All lighting except LED rules!
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Pi Lamp. Shape of the tube = Greek letter Π (Pi)
Thanks.
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I think HPS, MV, and MH rule! Ban LED instead! 
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HomeBrewLamps
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~Owen
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thelightingman
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All lighting except LED rules!
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I think HPS, MV, and MH rule! Ban LED instead! 
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sol
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I thought it meant pholded lamp 
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desktoptrashcan
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I’m guessing it stands for plug-in lamp.
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thelightingman
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All lighting except LED rules!
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I’m guessing it stands for plug-in lamp.
Same here.
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I think HPS, MV, and MH rule! Ban LED instead! 
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wide-lite 1000
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Collector,Hoarder,Pack-rat! Clear mercury Rules!!
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thelightingman
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All lighting except LED rules!
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I think HPS, MV, and MH rule! Ban LED instead! 
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wide-lite 1000
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dor123
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Other loves are printers/scanners/copiers, A/Cs
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Philips is the first manufacturer to use the term PL for their external ballasted CFLs.
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I"m don't speak English well, and rely on online translating to write in this site. Please forgive me if my choice of my words looks like offensive, while that isn't my intention.
I only working with the international date format (dd.mm.yyyy).
I lives in Israel, which is a 220-240V, 50hz country.
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Desultory13
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James
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Ash is right, the original name for this was "Pi-Lighting", inspired by the shape of the two parallel tubes connected by a top bridge. I have never seen an official confirmation though for what "SL" meant for the equivalent range of self-ballasted CFLs of Philips. I suspect that was just Dutch for Sparlamp = energy saving lamp.
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