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PL-L18Watt Fluorescent Bulb 2G11 Base,Compatible Ottlite 18W Replacement Lamp,5500K Daylight, 4 Pin, 8.9'' Overall Length - Amazon.com
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Amazon.com: Philips 345017 - PL-L 18W/41 - 18 Watt Long Twin-Tube Compact Fluorescent Light Bulb, 4100K : Office Products
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4 Pack) PLC-18W 827, 4 Pin G24q-2, 18 Watt Double Tube, Compact Fluorescent Light Bulb, Replaces Sylvania 20683 and Philips 38329-9 - PL-C 18W/827/4P/ALTO - Amazon.com
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Amazon.com: Philips 345017 - PL-L 18W/41 - 18 Watt Long Twin-Tube Compact Fluorescent Light Bulb, 4100K : Office Products
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