Aspire Atlantis EVO comes with both 0.4ohm and 0.5ohm Kanthal Clapton coils. Having coil options enables the EVO to achieve your preferred taste requirements when using a wide array of E-liquid flavors. 0.4ohm coils have larger airflow for greater vapor production and balanced flavor. 0.5ohm coils produce a more dense vapor highlighting the flavor differently. Switch between EVO coils as needed to ensure you are maximizing your vaping experience.