I can vape a Boge LR 2.0 ohm carto that measure 2.2 ohms up to the 6 volt max which is around 16 watts...at least for me, the fluid tastes really burnt and it is h o t t hot so if you have fluid advice for above the 10-12 watt range I will be buying some new fluid for such a heavy vape. It is worth noting that if the carto is not filled, it will throw a code above 15 watts. To my understanding, with how the Provari works, it will cut off before the 3.5 amp maximum is reached, closer to the 3.35 range.