This is because the Prism is, quite simply, one of the most comfortable, high-performing, fast-ramping Vape Mods available.
It is my primary mod when Im at home, though I do alternate with my mechs.
Finally, the Tria also contains the usual array of features, including temp control, protection measures, and the like.
 Shipping is available within Europe.
I have to repeat Darth's comment: safety first.
There are regulated mods which have variable power variable watts.