Back in the old days, we did not use watts. Watts were not relevant to vaping. Input volts and the resistance were the only variables.
In 2008 some of us figured out that stacked 3.7 volt batteries (18350 1200mAh) output a glorious 8.4 volts, and if used with a 5~5.5 ohm atomizer, this was the best vape possible. We tried to convince the people who were using mere 3.7 volt batteries to try the higher voltage. After this around 2008~2008, they invented the passthru which was essentially a 5 volt usb device with a 3.2 ohm atomizer. Then some of us built passsthrus that were capable of outputting any voltage so as to use this with a desktop variable voltage DC power supply. Back then, tanks did not exist, neither did any form of variable voltage ecig. The desktop variable power supply was an excellent means to achieve different voltages.
What I did deduct back in 2007 after extensive testing with volts and ohms, was that the best vape possible had to have a 3 differential between volts and ohms.
In other words, your resistance had to measure YOUR VOLTS-3.
Most people were vaping with a 4 volt battery and a 3~3.5 ohm atomizer. I knew this was wrong, because the differential between 4~4.2 (a fully charged 3.7 volt battery) and a 3 Ohm atomizer was only 1.2.
I knew that a small differential of 1.2 would lead to a very weak vape.
In 2008 I had a chinese (sailebo) supplier build me custom made 5.5ohm 801 pen style atomizers. These were designed for high voltage vaping (8 volts+) and dripping.
We used this theory of the OHMS + 3 (OR VOLTS-3) factor for years.
A few weeks ago, I was browsing the internet and saw the word "sub ohm" written all over the place, and stupidly enough I did not connect the dots. I made the additional mistake of wanting to try it, and still did not connect the dots, that in fact, without realizing it, I had been OVER OHMS and not SUB .
I have now tried sub ohms and can tell you that I prefer hypo ohms system. HYPO=ABOVE, as opposed to SUB.
The sub ohming system uses a resistance of 0.5 @ 3.7V, That is a differential of 3.2, just slightly above the 3 I mentioned earlier.
Back in 2008, we tried different resistances all the way up to 8 ohms resistance coils, with 10~12 volts output, we found that the best vape possible was at 5.5 ohms and 8~8.5 volts.Using pure VG at those high voltages gives a very thick and dense vapor, and its noticeably COLD. When you blow it onto your skin it feels VERY COLD.
Having said this, the subohm system also has a differential of 3 or thereabouts, but I realize that liquids have to be made with more taste and less nicotine, as opposed to 8 volts and 5ohms which requires much less taste and higher nic. Taste refers to flavoring you mix into liquids.
Having said this, I suddenly realize that it would not be possible to lung inhale at 8 volts and 5 ohms, because of the vapor's density AND THICKNESS.
All this is starting to make sense now. The next step, is to build some 5.5 ohms atomizers RDA, and use them with a 7.5~9 volts, and compare the vapor + taste to a 0.5 ohm system. Then I have to find some young guy who wants to do a lung inhale for me...
Imagine a mouth inhale at 5ohms and 8 volts, gives you a tad less vapor than a subohm system today, Imagine what a lung inhale would do?