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Westinghouse 602300 32 watt T9 Circular Fluorescent Light Bulb, Warm White - Pack of 12 - Walmart.com
Feit Electric 32 W T9 12 in. D Circline Fluorescent Bulb Cool White Circular 4100 K 1 pk - Ace Hardware
Feit Electric Color select 32-Watt EQ 12-in Cool White G24q-2 Pin Base Circline Type A LED Tube Light Bulb in the LED Tube Light Bulbs department at Lowes.com
32 Watt Fluorescent T9 Circline 12 In. Light Bulb with 4 Pin (G10Q) Base, 4200K - FC12T9/
4 Easy Ways to Change a Circular Fluorescent Light Bulb - wikiHow
CHKADAWA FCL30 Fluorescent Circline Light Bulb, 9 inch T9 30W FC9T9 Circular Lamp Tube Replacement for Old Round Ceiling Fan Fixture, Daylight DL 6500K 1350 Lumens, G10q 4 Pin Base, 2 Pack - - Amazon.com
Feit Electric 40-Watt 16 in. T9 G10q Linear Circline Fluorescent Tube Light Bulb, Cool White 4100K (1-Bulb) FC16T10/CW - The Home Depot
Feit Electric FC12T9/CW 12-Inch 32-Watt Cool White T9 Circular Fluorescent Light Bulb at Sutherlands
Project 'Green' House #1: LED replacement lighting for circular fluorescent tubes // DavidJB.com // Python, Technology, Web, Linux, and more, by David Beitey