Bluex Bulbs BlueX LED 60-Watt EQ 4-in Warm White Miniature Bi-pin (t5) Circline Type A or Type B LED Tube Light Bulb in the LED Tube Light Bulbs department at Lowes.com
LUXRITE LR20765 (4-Pack) 54-Watt 4 FT T5 High Output Fluorescent Tube Light Bulb, Daylight 6500K, 4200 Lumens, G5 Mini Bi-Pin Base - - Amazon.com
T5 HO UVB Bulb – Leap Habitats
Philips Dimmable 8W 22" 3500K T5 LED Bulb, Use With Instant Start Ballast | 8T5HE/24-835/IF10/G/DIM | Bulbs.com