10 x 21" 13W T5 Fluorescent Tube 535 [3500k] Standard White (Bell 05411) - Amazon.com
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Lightwise LWL7W40-F13T5 21" Direct Replacement Led Tube, 7-Watt, White, 4000K, Retrofit 13W T5 Fluorescent Tube of your Uncder-Cabinet Lights 50% Energy Saving, Replace Directly Set of 3 - Amazon.com
4Ft. 13 Watt LED T5 Bypass, Linear Replacement Tube
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2 x 21" 13w T5 Fluorescent Tube Cool White [4000k] (Osram 4050300008974) - Amazon.com
13W 21" T5 Fluorescent Tube White Lamp Series 517mm (ex Pins) Under Cabinet | eBay
4 Pack of 8W/21" T5 LED Tubes Replace 13W Fluorescent Tube for Undercabinet Lights Directly to get Over 50% Energy Saving and 50K Hours Life - Amazon.com
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