GE Lighting 5113WW T5 13-Watt Low Voltage Lamp, Fluorescent at SkyGeek.com
Sylvania 21369 13W T5 Linear Fluorescent Lamp, G5 Miniature Bi-Pin Base, 3000K Daylight, 1 Pack, White - Amazon.com
Amazon.com: 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
Feit Electric 13-Watt 21 in. T5 G5 Linear Fluorescent Tube Light Bulb, Cool White 4100K (1-Bulb) F13T5/CW/RP - The Home Depot
Feit Electric 13-Watt 21 in. T5 G5 Linear Fluorescent Tube Light Bulb, Daylight Deluxe 6500K (1-Bulb) F13T5/D/RP - The Home Depot