These 0.15 ohm coil heats has a operational wattage range od 50W to 120W, and work best at 80W to 100W. Providing smooth, silky flavor the TFV12 Prince Sextuple Coils X6 0.15 ohm 3pk deliver an enhanced, ample vapor production. With these coils you can get the most of your favorite e-liquid while still blowing robust clouds. Each coil head employs the Prince Coil System that has 12 holes making for quick cotton saturation and heat dissipation. Made from Kanthal wire and pure organic Japanese cotton, these coil heads have remarkable power unrivaled by any traditional coils released on the market. Sold in a pack of three, the TFV12 Prince Sextuple Coils X6 0.15 ohm 3pk by SMOK is perfect for anyone who wants long lasting, convenient, durable coils.