I've been watching this thread, but may have missed the answer to this, sorry if I have -
I use an Aristo V54 single bulb unit with a filter drawer above the neg stage, and an Aristo dimmer device in line, which is a great help making small prints at reasonable exposure times, keeping the f/stop at optimum. Can this new light source be used with a dimmer, and must it be a specific one? The question arises after seeing the comparative exposures to the 150w bulb.