I have a dual magnetic ballast that I got friend that is not working. When I plug them in they make noise but only put just a tiny bit of light. The only way the even see the light is in the dark. Looks like a little blue light. I am testing them out on the same socket due to I only have one rite now. Is it possible that both capacitors have gone out? And would they make noise if they were out? I really dont know much about these but any info would be great. Thanks