Feit Electric 20-Watt 12 in. T9 G10q Type A Plug and Play Linear Circline LED Tube Light Bulb, Cool White 4100K (4-Pack) FC12/840/LED/4 - The Home Depot
Feit Electric 15-Watt 8 in. T9 G10q Type A Plug and Play Linear Circline LED Tube Light Bulb, Daylight Deluxe 6500K FC8/865/LED - The Home Depot
Plug & Play 12 Inch T9 Circline LED Bulb Ballast Required!
SYLVANIA T5 Circline Fluorescent Tube Light Bulb, 40W, Soft White Color Temperature, 1 pack - Fluorescent Tubes - Amazon.com