The end result is a coil that should never dry hit. Making the coils last and taste better for longer. Z Force Coils from Innokin (ZF coils) designed for use in the Innokin Z Force Tank have two coil options: The 0.3 ohm Coils best from 30W - 45W for DTL or Restricted direct to lung vaping The 0.2 ohm Coils best from 50W to 80W for DTL or direct to lung vaping.