The iJoy Limitless XL Clearomizer is equipped with an adjustable "Airflow Control" in the bottom and a renewable, changeable winding deck. You decide whether to use the RBA or the finished XL-C4 Light-Up Chip Coil 0.15 Ohm. The 19.8 mm Velocity Deck promises a recording of large and extravagant windings. Either you use the RTA system with a single or dual coil winding or you simply screw in the XL-C4 finished evaporator head. The tank is designed for the sub-ohm range and works with very high currents.