I realize I might be necroing but saw no one had answered/replied
if it's the same guy I'm thinking of that also
mods the phin tins then I can only say about the one I won in a raffle at a
vape meet
the tin mod works great I had to watch one of the youtube videos after I got home to make sure how to change voltage( just me I forgot what was told to me) 3.24 - 6.0 volts, on off switch, uses two 18650 batteries
it's been great though I do recommend getting a 510 to 510/ego combo extension for T3's/clearomizers(no ego threading on tin) and for some of the carto tanks out there(due to tin not being able to close on some of the wider carto tanks)