22W 32W 40W Circular LED Tube T5 T8 round tube light circle Ring lamp LOT | eBay
FYBD Led Ring Light Fluorescent Light 11W T4 Round Light Ring Light with Energy Saving Lamp Round Bedroom Lighting - Walmart.com
22W 32W 40W 55W Circular LED Tube T5 Round Tube Light Circle Ring lamp (White Light, 32W) - - Amazon.com
Project 'Green' House #1: LED replacement lighting for circular fluorescent tubes // DavidJB.com // Python, Technology, Web, Linux, and more, by David Beitey
Feit Electric 16-Watt 9 in. T9 G10q Type A Plug and Play Linear Circline LED Tube Light Bulb, Tunable White (12-Pack) FC9/3CCT/LED/12 - The Home Depot