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Philips 20-Watt 2 ft. Linear T12 Fluorescent Tube Light Bulb Cool White (4100K) (1-Pack) 543272 - The Home Depot
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Fluorescent lamp - Wikipedia
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The Great Lightbulb Conspiracy - IEEE Spectrum
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Philips 20-Watt 2 ft. Linear T12 Fluorescent Tube Light Bulb Cool White (4100K) (1-Pack) 543272 - The Home Depot
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Amazon.com: 24 in. T12 20-Watt Cool White (4100K) Linear Fluorescent Light Bulb (10-Pack) : Tools & Home Improvement
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