It depends on the tank/coil you use.
My old Kanger Aerotank with those tiny coils would only go to 12-14 W before they burnt out.
Since then, I got the Melo 2 (and a few other tanks, including RTAs and drippers).
I vape at 45 W, and I got my dual battery that goes to 120W because of the dual battery life. Where my single battery would need 3-4 batteries per day, the dual one is good for a full and long day.
Plus the fact that I use temp. control, which adds more time.
As far as the whole high watts thing I simply don't get it. I've tried several types of coils, different tanks, drippers and seeing the huge wires that require this sort of power when simpler thinner wires that provides the same if not better vaping is beyond me.
The watts are about how much power can be pushed, and how fast.. a coil that can handle 100W will work with lower wattage, it just takes a bit longer to heat up to the proper temperature for the vaping to kick in, but the difference can be very minor once you get to a certain level. Too low wattage, the coil just won't heat up enough. For many coils (the pre-builts) have ratings of how much wattages to use and rule of thumbs for me, is that is a coil has 20-60W, I go with 2/3 of that will usually be the best spot. I find that going with the max tends to cause dry hits a lot more
So between the fact that we are simply evaporating a liquid, there's not a millions way to do it.. heat, wicking, and poof, we have steam, I just don't get the why some believe that they "need" to go to anything over 100W at this point... they just need to try something else than hanger wires for their coils.
Some setups do work better, but at some point, it really comes down that if you have a decent setup, it can't really get that much better, but some chase the dragon...
