Vape Mod or SMOK Mod or Mod/Battery is a power system, use built-in battery or replacement battery to support vape functions. So it can be Pen-Style Mod or Box-Style Mod, and its power can range from 5w to above 300w. If there is a smart chip in the Vape Mod, then you can adjust the Output Voltage and Output Wattage as you like. With this functions, you can enjoy the vaping.