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GE 13-Watt 21-in Miniature Bi-pin (t5) 4100 K Cool White Fluorescent Light Bulb (6-Pack) in the Fluorescent Light Bulbs department at Lowes.com
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Feit Electric 13-Watt 21 in. T5 G5 Linear Fluorescent Tube Light Bulb, Bright White 3000K (1-Bulb) F13T5/WW/RP - The Home Depot
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Unique Bulbs (Pack of 2) F13T5/WW 13-Watt T5 Fluorescent Warm White 3000K Light Bulb 20,000-Hour - - Amazon.com
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