Hello Martin. Your comment about one light in front of another slipped by me for a bit but on reflection it may work. Im trying to make lights (panels) whereby the light is stronger in the middle, kind of a hot spot. Not by much. Perhaps 0.5 or 1 stop max (not sure what that is yet in Blender). But also where the light transitions from bright to darker there needs to be a gradual transition rather than a sharp line transition. Thats what Im trying to achieve and I will give your suggestion a bash. Thank ye.