I remember looking up the voltage values for the numerals at one time. I think it was a reviewer on Youtube. Straight up on the potentiometer was something around 4.4 volts. So, I figured "Ah, this is going to be like a fresh charged batt. It was overly warm for my tastes and I could only do like 1 second draws. Clouds galore. Just not how I like to vape. Dialed all the way down and a 2 or 3 second vape with air vents wide open, it give a nice cool vape with plenty of vapor. I don't go through that much liquid either. Usually a tank a day (4-5 ml).
I don't see how people are burning through 25 or 30 mls a day with these tanks. I've got numerous rda's and rtda's including kanger subtank (nice), Kennedy, Kayfun v5, Velocity, etc. but they have been shelved since these coils are lasting so long.