I am a mechanical designer, I do sheet metal enclosures now but I've spent quite a bit of time doing medical lighting, fluorescent, incandescent and led. I've designed parts made out of just about everything from fiberglass to plastics, sand and die casting aluminum extrusions, tooling for the gas and steam turbines, large flexible couplings I guess I'm sort of a jack of all trades master of none type of a person.... Also served some time as a quality manager for an automotive supplier. I'm 44 and I still don't know what I want to do when i grow up, maybe a cowboy I can't decide. lol