About mode of iStick TC200W

The Eleaf iStick TC200W (Buy it at http://www.istick.org/istick-tc200w.html) build in a good quality, of course it has many intelligent function, it has lots of modes such as TC(Ni,Ti,SS,TCR)/VW modes, therefore Eleaf iStick TC200W Fireware Upgradable Box Mod can support many different vaping experience. In addition to that, all of this firmware are upgradeable.