They do look like  a great set of lights.  However, they look like they were made with Poser 4 in mind, and if that's the case, they may not preview well in Poser 6 if there are more than 8 lights used.  If there are more than 8 lights, they will still render well, but the preview in the Pose window will be darker than what the final result is.

My favourite light sets were Complex Global Lights 2,  but while they previewed so nicely in Poser 5, they previewed almost black in Poser 6, and I had to render to see if that set was something I liked.  Plus I didn't realize that because of the number of lights how much longer my render times were.  Once I switched to Poser 6 and used less lights my renders were much faster.

"It is good to see ourselves as others see us. Try as we may, we are never
able to know ourselves fully as we are, especially the evil side of us.
This we can do only if we are not angry with our critics but will take in good
heart whatever they might have to say." - Ghandi