Thanks for responding on this. Yes, seems in short supply now.
I posted some SFT-40 test results in djozz's SFT-40 review thread here: https://budgetlightforum.com/t/-/67043?page=1#comment-1785607.
I think the SFT-40 is a great choice for multiple or single LED lights, just hoping for lower temp version, i.e. 5000K or so. I got several SBT90.2 lights (11 or so), some stock and some modded, including the triple HK90, but the cost is getting prohibitive.