Wotofo Mesh Strips 0.18ohm × 10 for the Wotofo Profile RDA. Improved and larger-sized for superior flavour. Perforated Kanthal A1 metal sheets provides larger contact surface than a traditional wire coils. The mesh style coil sheet measures 16mm*6.8mm with resistance of 0.18ohm to best perform at 40-60 watts. Proper mesh coil dry burning wattage is between 15W and 20W.