Aspire Onixx Kit: 0.6 Ohm. Aspire BP80 Kit: 0.3 Ohm, 0.17 Ohm. Aspire BP60 Kit: 0.3 Ohm, 0.6 Ohm. Lower resistance options will allow for a DTL (Direct To Lung) vape with increased vapour production, while higher resistance coils will produce a discreet amount of vapour for an MTL (Mouth To Lung) vape.