Obviously GTI is putting out the benefits of their product (which is very good and if you can afford it is certainly recommended). However, 4 50watt filtered tungsten bulbs (their way of saying solux) and their claimed BTU rating seems poorly stated. A standard 100 watt incandescent bulb generates around 300 BTU/hr so 4 50 watt halogen bulbs would probably be producing less than 1000 BTU/hr. Don't want to take the time to do the math, but that's not that much heat. Unless it's a pretty small room don't think it would be noticeable, and you don't leave them on all the time anyway.
As far as the 64" bar, what i was referring to was the bar that you can pop a print into and it holds it which comes with each GTI. You can buy just the bars, they call them "print bars
" . They are similar to a map rail, but work much better for photographic paper. I've tried several map rails and the GTI is really the only one that works well.
The solux unit has everything you need, mount it and route a cord to a plug. I have mine plugged into a radio controlled switch, so the print is hanging on a wall about 10 feet away, and I can flip the lights on to view it from my workstation. So most of the time they aren't on.
As far as one of GTI's main claim that you need some UV light so the OBA's can be activated, don't know if I totally buy into that one. Seems a poor rational. OBA papers usually look just fine even if no UV light is present . I guess there is some logic to it, but it certainly isn't the main feature and reason to drop several thousand on a unit. If you wanted to throw a little UV in the mix, you could easily add a little fluorescent or compact florescent light onto the viewing area. That's what we did for decades until decent color corrected fluorescents starting showing up, use a mixture of standard incandescent bulbs with some cool white fluorescents.