“Mods” are a growing part of the e-cigarette niche, and their power can’t be ignored.
A mod is more for the really “into it” vaper, someone who considers themselves a hobbyist or real guru. When you use these, there are more moving parts than we really can go into, and until we get a professional who can speak with more experience, we won’t pretend to know too much about the mod.
You will see examples of mods, highly popular mods, at Vapor Zone and Volcano Cigs. Check those out and you’ll probably stumble across more information.