 The lights are manufactured at a GE plant in Cleveland, Ohio, and are tested on a tree at GE's headquarters in Fairfield, Connecticut, in mid-October to ensure that the design looks right and nothing is technically wrong with it.Contractors begin soliciting ornaments for the trees along the Pathway of Peace about the same time, usually around a theme.Other vendors begin contacting nationally known singers, performers, and the providers of children's characters (such as Warner Bros.