Excuse me for posting in old thread, i just starting to find out information about cyanotype photography. My situation is like this one, i have(and i like) 35mm system and i thought about using UV LED's bulb in my 35mm enlarger, if using bulb with 60 LEDs its light output is comparable to a 100watt standard light bulb.. What do you think? Will the light amount be enough for 35mm neg exposure on cyanotype?