Just wanted to update on my last post. I tested both the LED bulb and the PH-1400 incandescent with my Beseler Cadet. Not a scientific test or anything quantitative, just printed the same negative with both lamps and looked at the results. Well, the LED lamp is absolutely fine. Actually, it´s so nice to work with it I´m not using the PH-1400 anymore. The contrast is maybe about 1 grade lower with the same filtration and multicontrast paper (which, for me, is even better), but cannot be sure cause I don´t have any real experience on that. And the exposure times are obviously longer, but that´s a plus, I can learn burning and dodging. Anyway, what I wanted to say is that the prints look just great and I am not going to worry anymore about enlarger bulbs burning.