I took a course at a local museum in printmaking and copied the design of the small portable box they use. It's a "facial tanning lamp" available on Ebay for about $25, mounted to so as to have the bulbs about 5 inches away from the surface on which it is placed. A sheet of plate glass, a timer and away you go. The current times for me, using K73 plates for gravure printing is about 40 seconds with the positive and another 40-60 seconds with a stochastic screen. Light, simple and cheap. I'm limited in size - pretty much to the dimensions of the tanning unit at this point (10 by 12?) but that's all I really need. Replacement bulbs are readily available and the unit comes all wired and ready. Plug and play, as they say.