You're right...the MRV's with the darker finish seem to use the Q2 bin whereas the original MRV had the P4. So I would assume this version contains the Q2 bin.
See post #11 in the following thread:
https://www.candlepowerforums.com/posts/2136447
Since that is my thead, I thought I'd weigh in here:
Note that the new MRV light that Stefan and I have reviewed is the HA (type III) version, which now comes in a dark "chocolate" brown. Both of us have the original P4 "light gray" HA-III MRV, and this new version is brighter - leading us both to suspect it is a Q2 emitter.
The light in question here is black, and according to MattK at batteryjunction (who seems to be selling the same kit), is
only type II anodized. It is unknown at this time if these lights also have the brighter emitter, or if they are just anodizing rejects from the first batch.