I'm turning a shed into a workshop. I already have two circuits that run to nearby exterior outlets that I want to tie into to power my shed/workshop. I would like to have 1 circuit for lights and the other for my power tools. My question is (I guess two-part): 1. In Southern CA, do I have to install a sub-panel in the shed/workshop? 2. If so, can these two circuits go into one sub-panel and remain separate? Or would it be best to do one sub for each circuit?