Although there alreadly have appeared various kinds of powerful electronic box mod to meet vapers' diversified needs, iStick 20W is still a good choice for vapers, especially for a beginner in vaping. Firstly, its 2200mAh output wattage is enough for vapers to enjoy vapor production and if you combine it to a good and suitable atomizer, you also will taste good vaping flavor, such a comfortable vaping experience! Its adjustable voltage will provide you different vaping feelings. Maybe you want to pursue the different vaping from temperature control function, but the TC technology still hasn't developed very maturely and the current adjustable voltage function can guarantee high stability wattage output even in the case of low power. Eleaf is a trustworthy brand and its product is affordable in price. Of course, to achieve a satisfying vaping experience, you should choose the premium quality one on reliable official authorized distributor website.