Some trial and error may be required to find the right settings for you, but the simple-to-use controls of the SERIES-B DNA 75W means that is easy to cycle through various power levels. Different e-liquids or e-juices will perform very differently at a range of power levels. Some respond well at higher wattages, some will offer better flavour with less power. Airflow also has a big effect on the vapour produced. Sub-ohm vaping in particular requires plenty of airflow to prevent your wick from burning. If in doubt, keep the watts/temperature low to begin with, and gradually increase until you find a setting you’re happy with.