Source: New Osram Oslon Square, testing a 4000K 92CRI typ. emitter
A mod with this sort of emitters would get light output reduced to about ⅔. However, the die area is XP-E class, doesn't it? If so, this means the area brightness is above 2.5 times that of XP-L emitters bla bla… ≈60% additional high-CRI throw. :-D
Cheers 