If i could give this 0 stars I would! I bought the 0.2 ohm coil and they burnt straight away! I did everything right by putting liquid on the cotton ensuring it was fully saturated and filling the tank and even letting it sit for an hour just to be sure. I even reduced the wattage below recommended wattage and it still burnt straight away! I’m really disappointed with this and it’s just £10 straight down the drain.