Here is a simple light set I use for a lot of my testing.

Save it to your Poser Runtime, libraries, Light folder or a subfolder in there. When you save it, remove the .txt extension. I had to add that to make the forum let me upload it.

When you load it in Poser 7, it will complain that it's saved from a newer version (Poser 8) but it should work anyway. You can re-save it after you load it so the warning goes away.

When you use this, make sure you go into your render settings and enable shadows and raytracing.

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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)