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Philips SL*18
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Philips SL compact fluorescent lamps original design from the 1980s in hexagonal boxes retro design Stock Photo - Alamy
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Philips SL*18
Integral compact fluorescent lamp | Smithsonian Institution
Philips SL*18 Demonstration Lamp
Philips SL*18 and similar
Compact fluorescent lamp | Science Museum Group Collection
