T4 Circular 12W G10Q Fluorescent Bulb Replacement Bulb for Lighted Mirror Victory by Technical Precision - 6400K Full Spectrum Natural Daylight Circular Tube Light - 4.75 Inch Outside Diameter, Fluorescent & Neon
T5 22w CIRCULAR TUBE 4000k 2GX13 - The Lighting Outlet
32 W Circular Tube (OptoMag Accessories) -Khush Enterprises
Fluorescent Tube - T9 Circular - Daylight - 11 W - 12" from SYLVANIA | BMR
Project 'Green' House #1: LED replacement lighting for circular fluorescent tubes // DavidJB.com // Python, Technology, Web, Linux, and more, by David Beitey
LED Circular Tube Light
12W 90-240V G10q T9 Circular LED Tube light - AliExpress
22W 32W 40W Circular LED Tube T5 T8 round tube light circle Ring lamp LOT | eBay
Buy Wholesale China Led Tube > Led Circular Tube Light - Customize 12w/16w/18w/20w Led Circular Tube & Led Tube > Led Circular Tube Light - Customize 12w | Global Sources