GE Warm White 13 Watt 20.67 Inch T5 G5 Base Fluorescent Tube 1 Pack - Walmart.com
Light Efficient Design 7W LED - 13W CFL Equal - G23-2 Base - 2700K - Horizontal - 10ct
Fluorescent-lamp formats - Wikipedia
Bluex Bulbs BlueX LED 60-Watt EQ T5 Warm White Miniature Bi-pin (t5) LED Light Bulb (4-Pack) in the General Purpose Light Bulbs department at Lowes.com
Philips 13-Watt 21 in. Linear T5 Fluorescent Tube Light Bulb Cool White (4100K) (12-Pack) 546499 - The Home Depot
Circle 13W T5 Fluorescent Light Bulbs, 20,000 Hours Reliable Service, Fast & Simple Installation, Perfect Under The Counter Kitchen Light Bulbs, Cool White - Pack of 6 - Amazon.com