Demystifying VV and VW Settings: Variable Voltage, Wattage, and You!

What’s the difference between VV and VW? Which should I choose?

Right now, you either have a device with variable wattage (VW) and variable voltage (VV) settings, or you’re debating if you want to buy a device with one, or both, of these features. If you’re anything like me, you might have googled “VV and VW” and found a few articles, blog posts, and message boards explaining the differences between VV and VW settings in excruciating technical, scientific, and mathematical detail. Your eyes might have rolled back into your head once you reached the mathematical equation explaining the scientific wonders of Ohm’s Law, but seriously, who cares? You’re not trying to pass your high school science class, you just want to quit smoking cigarettes and start vaping already! Double settings, WHAT DOES IT MEAN?

Okay, just calm down, and take a few deep breaths. All that matters, is how to use VV or VW, and how these settings effect your vaping experience, and that’s all we’re going to talk about in this article. So here’s everything you need to know (in easy to understand terms) about  VV and VW settings, and how to choose between the two.

VV and VW Basics and Similarities

In order to hone in your vape for the best flavor and vapor, you need to be able to adjust the heat. If you have VV and/or VW features, you can adjust for personal taste and for the ohms resistance of the header you’re using. To put it simply, less watts or volts will result in a cooler vape, while more volts and watts will result in a hotter vape. More=hotter, less=colder. Simple!

VV and VW Differences

Now that you know the basics, let’s talk about their differences. If you have a device with both settings, you’ll have to decide which setting to choose because you can’t set different volt settings AND different watts settings at the same time; the science doesn’t work that way. Sure, I could explain why, but that would require math, and that’s boring! So, just take my word on it; you can trust me. I suffered through the science, and the maths so you don’t have to. You can thank me by putting down those nasty cancer-sticks.

Variable Voltage works by you adjusting the volts either up, or down, in order to dial in on the perfect heat level. Since different headers have different resistances, you’ll also have to change the voltage setting if you change between different resistance headers. If you change to a header with higher ohms, you’ll need to up your volts. If you change to a header with lower ohms, then you’ll need to lower your volts to get the same experience.

Think of it like your driving a car. Your speed equals heat (or watts) and the gas pedal equals volts. If you want to maintain a steady speed across various types of terrain (the terrain represents the ohms resistance of your e cig header), you need to adjust the pressure on the gas pedal with your foot. You’ll push the gas pedal harder if there’s more resistance against the car (driving up an incline/more ohms), and ease up on the gas if there’s less resistance (driving down a hill/less ohms). That’s not a perfect example, but it’s the right frame of thinking. Now you almost know how to science! To put it simply: more ohms=more volts, less ohms=less volts. Easy!

Variable Wattage works a little bit differently than VV settings. If you choose to set your watts, instead of volts, the battery automatically adjusts the voltage to provide the wattage you selected, regardless of the resistance of your header. So if you decide to switch between different ohms resistance headers, you don’t need to change your wattage setting, because your e cig battery will do the math for you, how considerate!

You can think of VW settings  like they’re cruise control settings. Instead of manually adjusting the gas pedal (volts) every time you encounter a hill,  you set your cruise control to the speed (watts) you want once. Then, the car automatically calculates how much the gas pedal should be pressed for different inclines (more ohms), or declines (less ohms), in the terrain in order to maintain your desired speed.

So what’s better, VV or VW settings?

Well, that depends on you. There are benefits and draw backs to both, so let’s look at some of them.

How deep is your wallet?

VV devices are undoubtedly more wallet friendly than devices with VW options. If money is an issue, go ahead and start with a VV device. There are many budget friendly VV batteries out there, so you have a great selection to choose from.

Do you prefer ease of use or fine tuning?

VW settings are definitely easier to use. You can literally set it and forget it. You wont have to adjust the settings every-time you change your header. For this reason, I personally prefer to use my VW settings. But in all honesty, it’s not that hard to switch your VV settings. In-fact, there are  some people who even  prefer VV  over VW because they can adjust the volts in smaller increments than watts – giving them a bit more control. But I’m lazy and can’t tell the difference, so I prefer using VW settings just because I can’t be bothered with clicking the button or spinning the VV dial; don’t judge me.

The Choice is Yours

Now that you know the differences, it’s up to you to decide. As long as you choose a device with one (or both) of these features, you can definitely feel confident that you’ll have an awesome time choosing between different flavors and headers. Just remember that VW works like cruise control, while VV is a more manual, yet fine-tuned, process. But with either setting, you will be able to harness the magic electrical power of science and finally put down those cancer-sticks for good! Vape on!

Breanna Mimms

Breanna is an e cig enthusiast, an avid skier, and an aspiring author. She graduated from James Madison with a degree in English-Creative Writing. Breanna lives in Virginia with her husband and menagerie of pets. When she's not at her day job as a community moderator, you can find her hunched over her computer moonlighting as a writer, vaping on her MVP 2, or playing fantasy computer games - despite an unfortunate lack of hand-eye coordination.

Comments (7)

  • Kim domingue


    Breanna, you ARE the bomb! Your explanation of variable volts and variable wattage is the one I will be showing anyone who is as confused as I was about what they do and which to use!
    The first device that I bought was a Ego Twist, a variable voltage model, which I enjoyed and still use. It was easy to learn to operate—twist the dial to a higher number, it vaped hotter—twist the dial to a lower number, it vaped cooler. Simple, right? Then I decided that I wanted something with more power so I did what any halfway intelligent woman would do…..I dove headfirst into the internet to research my options. Well, by the time I came up for air, I was pretty sure that previous estimates of my intelligence had been grossly exaggerated! Lol! Rarely in my life have I felt THAT stupid.
    Anyway, I ended up purchasing a Telsa with a nifty LED screen and umpteen different settings for V V and V W and there was stuff about ohms….. you’d laugh yourself silly if you knew how many times I tried to change the setting for the ohms on that sucker! That chart that everyone refers you to? Yeah, well, I obviously didn’t have a handle on it as I was STILL trying to change the ohms after studying the %*”-+:(#* chart! Tried to adjust the V V and the V W according to that chart and couldn’t figure out why my settings wouldn’t stay where I put them. And the instruction booklet that came with the device? Might as well have been written in Latin for all the good it did me.
    Then I remembered your site—I had bookmarked it, thank goodness—and, lo and behold, there they were! The answers to my questions! Seriously, I am so glad that SOMEONE out there understands that not everyone who vapes is a scientist, a mathematician or an electrical engineer. The analogy you came up with is easy to relate to and I’m sure that most people grasp it right away. I know I did!
    Thanks so much, Breanna. If you were here, I’d give you a big hug!
    Now if I just knew what an ohms resistance header is. Sigh.


    • Breanna Mimms


      This has literally made my day! Thank you SO Much for the kind words. I remember being exactly in your boat! I was frustrated, confused, and felt like an idiot. I’m stubborn though (and a bit obsessive) so I did lots and lots and lots of research…but I hated that I had to spend so much time researching just to make what I felt should be an enjoyable EASY switch.

      My goal was to make it easier for anyone else who decided to make the switch so they knew exactly what to do without being a math whiz. I’m so glad that I was able to help. And e hugs are just as great!!


      If you have any other questions, feel free to let me know!



  • Kim domingue


    O.K. Back to the feeling stupid thing again. Read another of your posts. An ohms resistance header is the thing on the bottom of your e-liquid tank that screws into the battery, yes?


    • Breanna Mimms


      Hi Kim!

      First of all, thanks for the compliment, and don’t feel stupid!! I had SO many questions when I first started :)

      Every type of atomizer you screw into your battery has an ohms resistance, whether it be cartomizers, clearomizers, dripping atomizers, or even rebuildable atomizers. The ohms basically measures how much, or how little, energy from the battery is being pulled. So the less resistance, the more heat you’ll get. More resistance equals less heat. (Think of it like a faucet, the tighter the faucet the higher the resistance, so less water will come out….)

      So the ohms refers to the coil itself in your atomizer – where ever it’s housed (top, middle, bottom, etc). The threading on the bottom is just the threading.

      I hope this answered your questions :) IF they didn’t, feel free to let me know!


  • Debbie


    Just wanted you to know your article helped me tremendously! I just started vaping and this was the best VV VW I have found! I pinned it on Pinterest to help others and so I will have it to refer to!


  • Krishna


    Hey Breanna!!

    great article…i wish more people wrote like you, I understood more from this one article than reading so many other blogs which made it even more confusing haha… and i did get the ‘gist’ of most of it…but i still have a doubt which is confusing me….

    I recently got an iTaste MVP 2.0…but it has the option of setting both the V W and V V?
    Does the MVP have a way to adjust both as per our setting or am I missing something?

    Also, my ohms resistance meter says 3.1…so what would my optimal settings be? I love a heavy vape…but don’t wanna damage the coils lol



    • Brennen


      Hi Krishna, you can only adjust one or the other not both. With a 3.1 ohm coil I would adjust to 10-15 watts on the MVP2


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