3 x Philips ES E27 SL-E Pro Electronic Prismatic Cover 16w Low Energy Bulb 950lm | eBay
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Philips SL*9 Prismatic
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Philips SL-Electronic SL-E Pro 16W/827 E27
Philips SL*9 CFL with black base, early rare example of original CFL or energy saver design dating back to early 1980s, later lamps had a white base Stock Photo - Alamy
Philips Light Prismatic SL-E 10YR16W/82 Energy-Saving Lamp 16W E27 230 V Warm White : Amazon.co.uk: Lighting
2-The Philips SL*; the first commercially available CFL (1980; 18W, 900... | Download Scientific Diagram