All around the theatre we have blue work lights, but they've never worked. We can't figure out how to turn them on. Today Justin and I took the time to track the line all the way back to the dimmer room where it disappears into the floor. The line is marked "DM25" and "LI66". What does that mean? Can anyone tell us where to go from here? Neither one of us really knows what we're doing (especially when dimmer racks are involved) so yeah...explaining is nice.