Mod E cigs icon Mod e cigs kits belong in the “intermediate” category when it comes to vaping. If you have passed the stage of using vaping products like the cig-a-like’s or eGo pens then mod e cigs, and specially the mod kits are your best next option. These are some of the most powerful vaping kits on the market today and they come with all sorts of features from variable voltage and variable wattage to even more advanced stuff like temperature control. E-cig mods are either box shaped or tubular and they are powered either by an internal battery or by one that needs to be purchased separately.