For about the cost of a ego twist you can get yourself a Lavatube. If I had to choose between them, Id take the lavatube. This is a great deal on an introductory VV mod. My lavatube is still going strong from a year ago.
$23.00 is a steal.
Our VV tube has the following features that are sure to enhance your
vaping experience no matter what volt you like to vape at. The
LCD screen is simple and easy to read and also is back lit with a red
LED. It simply displays the voltage as you set/change it using the
voltage set buttons. The "Lock" feature, simply push and hold the 2
black voltage adjustment buttons at the same time for 5 seconds and it
will lock the voltage. This is great as it means you can't accidentally
change the voltage. Comes with built in circuit/switch protection. Which
means a 10
second cut off and reverse battery protection. To turn it on you need
to push the RED power button for 5 seconds, this is also the way you
shut the device off. To adjust the voltage you need to push the black +
or - buttons, and lastly to fire your VV tube there is a large black
button. Please check out our options on this great mod and make a kit
that works well with you.