The Smok TFV12 V12 Replacement Coil Pack brings the world class and industry leading coil designs implemented in the TFV8 series to another level, with V12 versions of the popular X4 and Q4 coils with ranges of 60 to 220W and 60 to 190W, respectively. The V12 T12 duodenary coil heads and V12 T8 quadruple coil heads have a range of 60 to 350 and 70 to 320W respectively. Coil Specifications: SMOK V12 Engine Coil Family V12 X4 Quadruple Coil Head 0.15 ohm Patented Quadruple Coil 60 to 220W 100 to 170W Recommended Range V12 Q4 Quadruple Coil Head 0.15 ohm Patented Quadruple Coil 60 to 190W 90 to 160W Recommended Range V12 T6 Sextuple Coil Head 0.16 ohm Additional Wicking Ports Auxiliary Wicking 90 to 320W Range 120 to 180W Recommended Range V12 T12 Duodenary Coil Head 0.12 ohm Patented Duodenary Coil 60 to 350W Range 130 to 200W Recommended Range V12 T8 Octuple Coil Head 0.16 ohm Patented Octuple Coil 70 to 320W Range 120 to 200W Recommended Range V12 T14 Fourteen Coil Head 0.12 Patented Fourteen Coil 80 to 350W Range 120 to 200W Recommended Range