It should be Thrunite TN4A HI.
http://www.thrunite.com/thrunite-tn4a-hi-cool-white-new-product/
FWIW-My 2 StarryNight SA-22’s had none of those issues—and are great lights!
Yeah, if the SK68’S we eternal the same as a couple years ago, it’d be great . Heard a lot about the LB emitters. I like being able to get 14500 performance out of AA’s, where do you get tubes?
Wow, out throws a C8? That sounds great. It just seems easier to find 2 than 4 or 8, but 1020 lumens sounds great.
I’ll look at the TN4A, good to know about the SA-22.
If youre talking about Sipik “extension tubes”, then heres one, I simply searched for “2 AA flashlight” :
http://www.ebay.com/itm/310728742171
I like that idea. Where do you find SK 68’s with solid pills? Saw a thread on that. Then I could put a warm or neutral led in there, most of the really bright ones are cool white, unfortunately.
I think the SK68 +14500 is about the same lumens as the caveman above, so it would be great if I could duplicate SK68 +14500 with AA’s
No idea about solid pills, never ran my hollow ones long enough to cause a trouble 
!
EA81 - 2150 lumens - 462m throw - 8xAA
http://flashlight.nitecore.com/product/ea81
I have one and it is equivalent to a decent C8 with 4 x NiMh
see: http://www.cnqualitygoods.com/goods.php?id=1980
and the original group buy thread here: https://budgetlightforum.com/t/-/24825
That looks nice！！