VooPoo PnP Coils are designed to increase flavour and vapour production for both MTL and DTL vapers. PnP-M2 is a 0.6ohm coil with a higher power range of 20-28Ws for a more intense DTL vape. PnP-R1 is a 0.8ohm coil with a power range of 12-18Ws and is best for DTL users.