a strobe light isn't actually required. You can do this with ANY incandescent lamp powered by a 60hz wall outlet. It works!
how to set speed with strobe and speed controller
I have a Nottingham Dais which uses an outboard speed controller to set the speed. I have a small light and a paper disc used to set the speed. I've never done this and there are no instructions, which is typical of Nottingham products.