I ordered as well and will post here with a short review after 24 hours of use then an in-depth review after 7 days of use. I'm assuming that since these are stacked and dueced up. You can crank the voltage up to 4.5-6v to have these monsters turn into vapor bombs.
Lots of people use dual coils cartomizers at higher voltage since they are 3ohms stacked, so it's prob the same for these. " I think " lol
Well I'll try it at higher voltage and see how they work but first ill take it easy and break them in at 3.7 volts .
Great job Bruce, again... Always ahead of the pack
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