The problem is that their version will not be named _RealLights.esp but instead something like RealLights-All Natural.esp (or along those lines). This makes it so that mods like this one are not compatible because this mod wants the master to be named as the original _RealLights/esp.
Which causes conflict as I want to use both mods.
I know the new version is not released yet - and wondering if just renaming the master for this mod with Gecko would solve the conflict - or only create new headaches.