I don't think Stranger has "Special" to them FL80s...
The pics you have above and why the screen colors have a bluish hue I think is because of the focus stacking they did to make their pictures look crisp.
The Info on their screens is no different than the Taifun boxes, plus do you really need to know two different battery levels while in TC?
<sarcasm time>
Ooh look my battery bar says 2/3rd full, oh noes my voltage reads 3.7/3.9v...
<Sarcasm off>
With my Dani Mini, with its limited screen readings (4 infomatics) only 2 are needed, heck I'd go as far as saying only one is... wattage set.
I don't need to know the last temp, I don't need voltage remaining/used...and I really don't need Ω reading... you set it up in TC, select wire type or TCR value, set wattage, set temp... Init, process, etc and away you go.
Additionally the FL80 18650s will do 80w... just not sustainably as a 21700 could (Duh) but honestly, those looking at Dani's, or Stranger Mods Dicodes aren't looking to vape at 80w... my MTL'ing is at 14w on the dani, and my DL on the Dani is 27w... plus I also utilize Molicel P26As over higher mAh batteries such as the 30Q or VTC6s and or the like... care more about rebound voltage than I do mAh... mostly for mods have a cut off value (Although changeable in the FL80) and you will sag below that voltage cut off far before you use up that 400 extra mAh vs a higher amp rated battery like the P26A
One thing I can tell you from my Dani Mini... its not very power efficient, I mean I get its an 18650 and I am only using 1500/2400 mAh... but its not really much worse than the poopy 85% efficiency of the DNA75C... plus I have a ton of 18650s and one battery and one tank lasts me easily a day... I just dont get the 2-4 days that the 40T guys get with 21700s
Again, SM's mods are awesome looking... but I truly think they are over priced... but he is marketing to a specific set of people... ones who look at mods as an extension or jewelry, purse, accessory et al. Which I'd buy one, but whos going to see it? Me, a few select people I post pics of it?
Now I am not saying, go buy that $150 Elcigart Prisma DNA75C (Btw isnt ugly, but by no means in SMs stratosphere) lol... might buy one, nah probably wont... I don't TC a ton and I have a great mod in the Dani Mini already
Anyway, please don't take my forwardness as criticism, and my tangents sometimes go really off of topic... just giving perspective of an average Joe
Be rad!