use poser capped cylinder to simulate fluorescent tube.  use hi-res ball to sim bulb light.  set ambient = ~10 or 100 or more; leave other channels zeroed. enable IDL as per settings in bill's marble thread.  they may have posted freebie realistic light props here or on sharecg.

p.s. recommend not using tungsten-filament bulbs. prefer LED bulbs, which contain array of flat surface-mount diodes, each ~5 mm square.