You welcome, hope i can help more before the end of the world.

Actually is not precession, i meant energy level transitions such that rearrange electrons within the molecule.
I encourage you to keep trying, and learning, the diagrams stan provided is correct but incomplete and present polarities wrong. In the first thread here i describe how they should be wired correctly. AGAIN, its incomplete. For a circuit to work it must be closed always. There are different ways to do so...