With all due respect, guys, why are we belaboring on this subject of power or wattage adjustments so much? I really don't care what power I vape on, to be honest with you guys. If it is vaping good and gives me good TH I leave it at that particular voltage setting on my ProVari. Also, if I want to fine tune it I mess around the voltage setting here and there. Vapers who do not own a ProVari or Darwin can talk so much about them mostly in the abstract. It is completely different if you own one: It is just another piece of toy or crap that you do not want to talk about so much anymore. If you guys are just snowed about watts, amperes, electromotive force, potenials voltage, etc, maybe get some crash coures in basic electronics. After the training maybe we'll laugh about this crap and converse more intelligently?