Hi,
Sorry but I'm not sure to understand what you want to do.
Do you want to save/load the individual settings of each light in the scene? Let's say we have a scene with Light_01 (color_01, intensity_01), Light_02 (color_02, intensity_02), Light_03 (color_03, intensity_03), Light_04 (color_04, intensity_04). Are you looking to write a script that would save/load these values into a file?
I'm interested in this as well because, until now, saving these settings in a .conf file and loading them later, for example after having added Light_05 to the scene, would not apply the correct values to the lights.