The problem for me is the cost seems too high still. 30 LEDs end up costing $450 at $15 per III model LED. Plus all the other parts of the head. The upside is it looks like the LEDs would last almost forever in enlarger use. No bulb replacement costs. I know I'm not the only one that would like a bigger enlarger for light usage. The ones out there are either huge. Expensive. Or have other issues. I think I'll have to wait for LED costs to come down some more.