The SMOK V12 Prince M4 have a resistance of 0.17 ohms and they are the most appropriate coil option for mechanical mods. They feature 12 wicking ports for superior e juice delivery, a quadruple mechanical mod coil core and organic cotton wicks. Their power range is 30 to 70 watts, but anywhere between 40 and 60 will deliver the best balance of vapour production and flavour.