? about texture UV and preview

Hi All,
Why is my Bake and the preview so much Brighter then my Final Render?

That preview is very close to what I’ve baked out, sent over to P.S and it is at the top of the layer. Yet my F12 out is SO much darker. It is almost like it is not there, when I disable it. Just a few shades diff…

When I change the layer selection where they are named and stacked, the preview changes accordingly. (OK)
Does it matter that my UV editor is not changing it’s name \ selection when selecting a different layer?
(The UV editor stays on the last one assigned)