SMOK V12-Q4 coils are rated for use in mods with a 60 to 190 Watt power setting range. This is a 0.15 Ohm replaceable coil head containing 4 stacked coils. V12-Q4 coils feature unique wicking slots to keep the quadruple coils well juiced. These are big, flavoursome coils that deliver billowing clouds and a consistently cool vape. These SMOK V12-Q4 coils are at their best in the 90 to 160 Watt setting range.