I had the "Sun" set like this. I used a node to subdue the diffuse part to 85% intensity. This is because my Doge 2 sky is very white and produces a lot of diffuse light. I still wanted the sun for a good specular highlight, so this made a better balance. The overall infinite light intensity is 80%.

I did not arrive at these numbers through genius, nor endless trial and error. I used the light meter by itself on the stage, then added the figure.

Workflow matters.

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Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)