Thanks, that's kinda of what I thought. In the rest of my explanations, I'll just make a recommendation that if they want to save on ballast etc.. they install some unswitched lighting. I'll try to come up with the simplest way to remedy their problem. Of course the simplest short term way is just to replace the bad emergency ballast, but the chance of overheating the #12 wires, ballast and the bulbs may become a problem later. I still haven't presented it all to them yet:)
