I'm thinking about doing some more work in alt processes, specifically trying more than cyanotype. I'm thinking about trying three or four others, just to see what they're like. I don't want to use outdoor light for exposures, as it is very inconsistent this time of year, and with sunset before 5:00, I would hardly ever get to expose anything. I priced out building a UV lightbox. I took the suggestion of using 48" bulbs since the ballasts are more common. However, with bulbs at about $8 ea. and two four-light ballasts at $56 each, it seems like the box would run over $200, which I don't have to spend. Are there any alternatives to fluorescent-based UV lightboxes? Somewhere I read about someone who used some sort of HID lamp, I think a mercury or sodium vapor or something of that type (an industrial HID lamp) suspended over a printing frame. Any experience out there with fluorescent alternatives?