SMOK - TFV12 Prince V12-Q4 Coils 0.4Ohms (Pack of 3) Smok Sale! from £9.99 Qty. Add to Cart This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. SMOK - TFV12 Prince V12-Q4 Coils (Pack of 3) This pack contains 3 SMOK V12-Q4 Coils, featuring a resistance of 0.4 ohms and capable of firing between 40W-100W. These coils are compatible with the SMOK TFV12 Prince Tank.