Philips 22W 8 In. Bright White T9 4-Pin Circline Fluorescent Tube Light Bulb - Jerry's Do it Best Hardware
Replace 32W T9 Circular Fluorescent Tubes With 20W LED
Project 'Green' House #1: LED replacement lighting for circular fluorescent tubes // DavidJB.com // Python, Technology, Web, Linux, and more, by David Beitey
Replace 32W T9 Circular Fluorescent Tubes With 20W LED
T9 LED Circline Light Bulb, 8 Inch 1600LM LED Circular Light, 13W Clear Cover 4000K Soft White Replacement for FC8T9 22-Watt Fluorescent Circular Bulb(FC8T9), Ballast Bypass Required : Amazon.com.au: Automotive
Project 'Green' House #1: LED replacement lighting for circular fluorescent tubes // DavidJB.com // Python, Technology, Web, Linux, and more, by David Beitey
Philips 32-Watt 12 in. T9 Circline Linear Fluorescent Tube Light Bulb, Daylight Deluxe (6500K) (1-Pack) 262600 - The Home Depot
22w Fluorescent T9 Globe Cool White 4000k, Daylight 6000k 30500, 30501 - The Lighting Outlet
Circular T5 Fluorescent Tube 32W Warm White - CLAT532WWW
4 Easy Ways to Change a Circular Fluorescent Light Bulb - wikiHow