Please supply the scientific theory of how God created light when he said "let there be light".
Please include the testable elements of the process by which light was created.
include evidence supporting this theory.
Why would you imagine there would, or could, be such a thing? I mean, the whole frickin' point of God is that he's supernatural. You can't empirically test the supernatural. At best, you can look for the results of the supernatural act - i.e. we should see evidence of the flood - but, in the case of "let there be light" that light is long gone.