I want to improve dark lighting in my basement, which currently has 5
bare incandescent bulbs with old porcelain fixtures.

I'm not very handy--electrically "challenged"--but would like to try
replacing these myself with larger fluorescents.

Unfortunately the ceiling is low and I don't have access to the joists,
because the previous owner covered the entire ceiling with half-inch
oak planks (except where the incandescent fixtures protrude). I would
prefer not to remove.

Is it easy to replace the standard incandescent fixtures with flush
flourescent fixtures? Any particular type/style better than another?

Thanks for advice.