T9 LED Circline Light Bulb, 8 Inch 1600LM LED Circular Light, 13W Clear Cover 2700K Warm White Replacement for FC8T9 22-Watt Fluorescent Circular Bulb(FC8T9), Ballast Bypass Required - Amazon.com
T9 Led Circline Light 12 Inch Led Circular Ceiling Light Replacement For 32w Ring Fluorescent Fc12t9/cw G10q Diameter 300mm 18w - Led Bulbs & Tubes - AliExpress
T9 Circular LED Bulb Replaces FC8T9 & FC12T9 - Available In 8 And 12 Inch Diameter