SMOK V12 Prince Q4 CoilsSmok V12 Prince Q4 Coils are designed to be used with the Tfv12 Prince tank. These coils are developed for Sub ohm vaping. V12 Prince Q4 are compatible with the V12 Prince Tank, V12 prince Cobra Tank and Resa Prince Tank.Coils with a resistance less than 1ohm are known as Sub Ohm coils. These coils require a lot of power and heat up very quickly. To make sure your E Liquid doesn’t vaporise too fast leading to burned coils, we recommend using a thicker High VG E Liquid like our 70/30 E Liquids (70% VG to 30% PG).