In High School, 30 years ago, I "built" some lights for my Rock band. I took standard screw socket's bought at the hardware store and mounted them in the bottom of coffee cans, make a cheap Par can if you will. Some then were mounted in a strip on a 2x4, others were used individually. I'd bring about 20 or so "instruments" to a gig, and run the whole thing off 110. I even built a board out of a half dozen house hold dimmer units mounted on a plywood box. Very cheep but we were the coolest looking band in town.