I’m starting to wonder if I should try to claim DOA on this one too. I think I’m still inside the timeframe. It can’t hurt to ask.
Do minus green filters have a shelf life?
Great 
It is Matemico MT07 - overall good flashlight, but this SST20 5000K was a bad choice. And they sell XP-L HI 5000K version too, so I’m thinking of getting SST20 4000K or XP-L HI 5000K. Don’t need high CRI, I have FW3C for high CRI, but I’m afraid this XP-L will be greenish too.
I just told you “I got SST20 5000K flashlight”. And you together figured out it’s Matemico MT07… How?? 
You mean whole flashlight? It seems to be good, I tested it today and a big WOW on output, everything else seems fine to me - lightweight, with 26650 is lighter than Convoy M3 without battery
Yes, it does do flashlight things, but it’s sort of like buying Cod and getting Sardines.
Well you said it’s the same as the MF01 mini with a different name…and there’s only one other name for it.
I’ve run a few more comparison shots. They’re not perfect as the only imaging tool I have is the automatic adjust camera in my iphone.
Tint Comparison LInk
Now I’m really confused, because I was considering getting it in better tint - this XP-L used in Matemico has 3B bin.
Is it worth buying, or XP-L in 3B bin is greenish too?