Project 'Green' House #1: LED replacement lighting for circular fluorescent tubes // DavidJB.com // Python, Technology, Web, Linux, and more, by David Beitey
Orbit LED Table Lamp by PageOne — Dulce
Knight Chainz Excalibur Light Ring LED Disc Golf Basket Light– Gotta Go Gotta Throw
Feit Electric Color select 22-Watt EQ 8-in Cool White G24d-2 Pin Base Circline Type A LED Tube Light Bulb in the LED Tube Light Bulbs department at Lowes.com
22W 32W 40W 55W Circular LED Tube T5 Round Tube Light Circle Ring lamp (White Light, 32W) - - Amazon.com
Sylvania 32-Watt Equivalent 12 in. Circline T9 Round Tube LED Light Bulb 41208 - The Home Depot
22W 32W 40W Circular LED Tube T5 T8 round tube light circle Ring lamp LOT | eBay