Here is a link to the ceiling fixture for those who might want to take a look:
http://www.fullspectrumsolutions.com...res_35_ctg.htm
I used to have a couple of Ott lamps (gave both to my sister) but never cared for the color of the light from them. Although you would probably get less light on your project from a ceiling fixture, the quality of the light from the UltraLux looks very good.
Found this article which I also think is interesting, although she chose a different light for her photography work:
http://www.needlenthread.com/2012/12...-lighting.html