The Kanger Ni200 Nickel wire, which specializes for devices that uses temperature control. The Ni200 TSC (temperature sensing coils) are designed to work in the 20W - 45W range in a 0.15-ohm resistance.
*Please be aware that 0.15-ohm Ni200 nickel coils will ONLY work with devices that has temperature sensing technology. Do not attempt to use these on devices/mods that do not have this capability.*