New to this site and looking for some help. Trying to help my mom out. She has a Christmas decoration that has lights and motorized movement. It requires 6V a/c. I went on eBay and purchased a 110v ac to 6v/12v ac (dual tap) transformer. The problem I have is the actual output of the 6v tap on the transformer is actually 7.17v. I hooked it up and everything works but the lights seemed too bright, so I disconnected it so I wouldn't burn them out. Any ideas how I can regulate the output of the transformer so it is a true 6v.