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Project 'Green' House #1: LED replacement lighting for circular fluorescent tubes // DavidJB.com // Python, Technology, Web, Linux, and more, by David Beitey
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File:Circular fluorescent light.jpg - Wikipedia
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Circular Fluorescent Bulbs - Manufacturer, Supplier, Exporter
LUMILUX® T9 C
Replace 32W T9 Circular Fluorescent Tubes With 20W LED
