12 Inch Daylight (6000K) T9 Circline LED Relamp 32W Fluorescent Bulb FC12T9/D | eBay
Feit Electric 20-Watt 12 in. T9 G10q Type A Plug and Play Linear Circline LED Tube Light Bulb, Selectable White FC12/3CCT/LED - The Home Depot
T9 LED Circline Light Bulb 12 inch, 16W 6000K 1920LM, 9" LED Circular Tube Light, Replacement for Fluorescent Lamp Fixture FC12T9 (Ballast Must be Removed Or Bypassed) : Amazon.co.uk: Lighting