Be sure to read the specs on the controller to be sure it will switch and/or dim the type of light you have. Incandescent are no problem, fluorescents have to be made to be dimmed and incandescent dimmers will silently die if used with them....
A good answer is easier with a clear question giving the make and model of everything. "The biggest problem in communication is the illusion that it has taken place." -- G. “Bernie” Shaw