Abstract: A fluorescent light unit which is adapted for use in a conventional table lamp, hanging fixture, or wall fixture, and which includes a centerpost structure with a tube disposed about the centerpost and a plurality of fluorescent lamps at circularly spaced locations about the tube, and with the centerpost structure including or carrying a ballast unit for the lamps. The lamps and tube are mounted by top and bottom structures which are connected to the centerpost structure and which are constructed to pass an updraft of air through these structures and through the tube and about the ballast to cool the latter.