We've known since the beginning that AuroraDLights were possible in KAurora, though there is some confusion surrounding them. Hopefully I can help clear some of that up.
In the days before lightmaps, ignorant people such as myself thought that all the lighting came from AuroraDLights and Aurora Lights. It was thought, at least by myself, that AuroraDLights and Aurora Lights were 2 different things. AuroraDLights were possible to create through NWMax, but imported areas from the game through the old MDLOps 0.5 showed mostly blank dummies called Aurora Lights. New evidence from areas run through MDLOps 0.6a shows that all of these are actually AuroraDLights. So yes, AuroraDLights are possible. Aurora Lights aren't real things.
Lightmaps provide the lighting for an area. AuroraDLights are meant to create shadows and give light to dynamic objects such as creatures, placeables, doors, etc.
Quanon seems to be correct in that only 3 can light up at a time. However, you can have far more than 3 AuroraDLights in any given area. I think a common misconception used to be that there could only be 3 AuroraDLights. This is false. Use as many as you want.
A much more in depth explanation of AuroraDLights can be found here.