Oh, wow, thanks, NB, for the helpful info. I'm more of a "mechanical" person, very weak on the "electrical" aspects of vaping. However, the Darwin being a "Smart" device, hopefully will overcome my "handicap"! 
Thx again!

Thx again!
Cannot speak for Evolv but I would imagine they will be posting full details soon. If you want a quick reference, you can use the overly generalized formula: volts squared and divide by ohms (R) = watts. Or: VxV/R=Watts
So:
(3.7v x 3.7v)/1.8 (avg LR atty ohms) = 7.6 watts
3.7x3.7/2.5 (avg regular 510 atty ohms) = 5.47 watts
5x5/2.5 (avg regular 510 atty ohms) = 10 watts
5x5/3.0=8.33 watts
5x5/3.3=7.57 watts
6x6/3.3=10.90 watts
6x6/4.5(typical HV atty) = 8 watts
We are all accustomed to think in terms of setting volts. But, to decide volts we either have to blindly adjust to taste or do the above calculations (for a starting place) to find the heat output (watts) level we want to vape at. Darwin does the calculations and voltage changes for us - so once we focus on the heat output level (watts) we want - a quick turn of that wheel and Darwin does the rest. This is a MUCH faster and easier way of setting and that heat output (watts) level will be the same regardless of which atty/carto you put on the device - because Darwin reads the atty/carto ohms and makes the adjustments for us = "Smart" device.![]()