I'm not exactly sure what model it is, it was given to me and the box just says Sigelei
I think it's a mini one?
It takes 18350 battery also it's telescopic so it can can longer batteries.
When you screw in the evod there is a small gap around it.
The top bezel is not removable.
Maybe I should ask the person who have it to me lol!
I'd expect it to take both 510 and eGo thread. ??
DJS. Nemesis / Vamo V5 / iStick x 2 + KFLs / Lemo / Orchid / mini Nautiluss.
The R91 should fit on your Sigelei fine. Remember, the 510 connecter sticks out, so it doesn't have to fit inside the ring; it is designed to sit on top of it.
I've been running the R91 on a Twist. It works fine. It's a little top heavy but no worse than my PT2. The only thing wrong with it is that you can't open it up to fiddle with the coil without emptying it... not that I've had to.
I just received my SVD from FT. (I ordered it on Jan 7th.)
That's a clone, not a Kayfun Lite nor a Russian 91%.
Since Kayfun have upgraded to include an O-ring in the filling hole, (in the Lite+,) the two have equal pros and cons, in my opinion. My R91 did leak juice out of the filling hole when I left it full for a week or two. I like it though. Definitely a cleaner flavor than a Protank II, which is in turn better than an EVOD.
P Busardo has a good comparison between the Kayfun Lite and the R91: Taste Your Juice | THE KAYFUN LITE AND THE RUSSIAN 91% There a link on there to EZig, which is probably where you'd have to buy the R91.