SUNLITE 54CF 12 inch & 8 inch Circline Fluorescent Chrome Fixture - Walmart.com
How to replace Circular Fluorescent Ceiling Lights with LED in 2022 (DIY Step-by-Step for Dummies) - YouTube
Bulbmaster FC12T9/CW 32 Watts 12 Inch Round T9 Fluorescent Circular Light Bulb, Cool White 4100K, FC12T9 1930 Lumens G10Q 4-Pin Base 32W Circline Ceiling Lights - Amazon.com
Project 'Green' House #1: LED replacement lighting for circular fluorescent tubes // DavidJB.com // Python, Technology, Web, Linux, and more, by David Beitey