I suppose it's reasonable to stop lurking in order to ask a question... A few theatres ago, I worked for a road house. We had a wide variety of lighting equipment and amongst them were what the boss called "Rheostats." I never actually used them, but they basically looked like dimmers (the ones you put in your house, not theatrical dimmers) in metal boxes, with a twist lock female and an edison male poking out of it. A few times these went out on rentals where the customer didn't have any real dimming controls. Well, now I'm doing a freelance event and I need a way to dim a Source 4. Does anyone know how to hack one of those poor man's dimmers together, or have some other cost effective measure?