I made sure all of the metal wires were making good contact. I checked them all several times and bent the wires so they are making constant contact. However they still turn off after 15 or so seconds of being on. So it is probably an issue with resistance like neilvosko says. I fully admit ignorance with electrical and lighting parts, so does anyone know of anything that I can try to solve this problem? I really appreciate the help from everyone. Thank you very much!