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Satco S6500 22w T9 8 inch 4100k Cool White G10Q Circline Fluorescent L – BulbAmerica
Project 'Green' House #1: LED replacement lighting for circular fluorescent tubes // DavidJB.com // Python, Technology, Web, Linux, and more, by David Beitey
7.25 inch T5 22W Circular Bulb, T5 Round Fluorescent France | Ubuy
8 in. 22W Warm White (3000K) 4-Pin T9 Fluorescent Circular CFL Bulb
Project 'Green' House #1: LED replacement lighting for circular fluorescent tubes // DavidJB.com // Python, Technology, Web, Linux, and more, by David Beitey
GEL33774 Circular GE Fluorescent Light Bulbs | OnTimeSupplies.com