Bluex Bulbs BlueX LED 60-Watt EQ T5 Cool White Miniature Bi-pin (t5) LED Light Bulb (4-Pack) in the General Purpose Light Bulbs department at Lowes.com
7 Watt T5 LED Ballast Bypass Mini Bi-Pin 700 Lumens 21 Inches Long 3000K Soft
4 Pack LED Tube L13 F13T5/30K 21" INCH 8W 13W G5 Mini 2Pin Base 3000K Warm White | eBay
OCSParts F13T5/WW 13-Watt T5 Fluorescent Warm White 2700K, (Pack of 2) - Walmart.com
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, Bright White 3000K (1-Bulb) F13T5/WW/RP - The Home Depot
Feit Legacy Bulbs 13 W T5 0.7 in. D X 20.9 in. L Fluorescent Bulb Cool White Linear 4100 K 1 pk - Ace Hardware