Unfortunately the DVD of the video footage is corrupt, so I can't do any comp work. I did however make a couple of "china balls" with a couple of the 200W-equivalent fluorescents. They're only 10-inch diameter, but they're also made with acrylic globes. A bit more sturdy than paper. I also got a couple of paper ones to try. The bulbs need to be color-corrected. I need to get some minusgreen gels.