The latest new version Nautilus coils with Organic cotton and larger air holes.
Best wattage for the 1.8ohm coil would be between 10-14watts. If using a variable wattage device we would recommend starting on 10 watts and gradually move up through each wattage until you find a suitable vape. Same applies to the sub ohm 0.7ohm coil start lower and move up gradually. Remember to leave the liquid in for 10 minutes before using so it has sufficient time to absorb into the coil wick. (using when dry will damage the coil resulting in a burnt taste).