I've just acquired an old time-o-lite contact printer. It's a substantial metal beast, with four horizontal sockets with 60 watt incandescent bulbs, and a single red bulb in a vertical orientation. Above the bulbs is a height adjustable sheet of opaque plexiglass that acts as a diffuser, and above that the glass itself. The bulbs are wired through a rheostat that offers some adjustment of intensity.
I've read that self-ballasting mercury vapor bulbs can be used in standard sockets to provide UV light for alternative processes. Does anyone have a view as to whether I could put 4 bulbs of this type in the Time-o-Lite, and if so, what type and/or wattage I should try? Oh - I should mention that the contact printer allows a maximum print size of 8x10 (with masking blades to allow cropping).