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2x 18" 15w T8 Triphosphor Fluorescent Tube 840 Cool White [4000k] Philips 15840 8711500702807 | eBay
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Natural 15 Watt, T8 Germicidal Fluorescent Lighting Replacement for Philips 308643, TUB15T-W, G15T8 Light Bulb, Life 10,000 Hours - Fluorescent Tubes - Amazon.com
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