Smok V2 K4 replacement coils are designed for use with the TFV8 Baby V2 tank. These coils feature a resistance of 0.15ohm and utilise octuple coil technology. The recommended wattage range is 50W-110W, with optimal performance between 60W-80W, making them suitable for users seeking specific vaping experiences. These coils are ideal for those using vape devices compatible with the TFV8 Baby V2 tank, commonly found in vape shops across New Zealand.