How well does this work in Poser5? Had no problems so far with SR3/Windows. W hat is troublesome is deleting lots of lights via Python script, but that issue was fixed in the OS X version, so I expect the fix for Windows with SR4. Am I supposed to use the probelight node for something? No, you don't need the probleight node for these lightsets. What were the settings you used for those pictures you posted here (in LightGen)? Almost the default settings, all I changed was clicking the checkbox to make it scale the total light output to 1.