Project 'Green' House #1: LED replacement lighting for circular fluorescent tubes // DavidJB.com // Python, Technology, Web, Linux, and more, by David Beitey
4 Easy Ways to Change a Circular Fluorescent Light Bulb - wikiHow
How to Change out Fluorescent Light Bulbs in a Circline Fluorescent Light Fixture - YouTube
Project 'Green' House #1: LED replacement lighting for circular fluorescent tubes // DavidJB.com // Python, Technology, Web, Linux, and more, by David Beitey
GE 30-Watt EQ T9 Warm White 4-pin Circline Fluorescent Light Bulb in the Tube Light Bulbs department at Lowes.com
DIY How to Change a Circular Light Bulb | Ceiling Overhead Light | 22W Bulb [Circular Light Bulb] - YouTube
New FEIT FC12T9/CW 12" Circline Cool White Fluorescent 32 w CIRCULAR Light Bulb | eBay
NEW Porcelain Matte White LED Bulbs Modern Lighting Dimmable 4W E26 G200 G125 G80 G40 G25 A19 120V - Etsy
Circline - Fluorescent Tube Lights - Tube Lights - The Home Depot