Each brand of clearomizer has its own type of resistance coil. Some models of clearomizer allow you to use the same resistance coils (e.g. some Kanger, Joyetech or Aspire devices), but you still need to check the technical data sheet for your device and only buy compatible resistance coils. You also need to pay attention to the resistance value, shown in ohms, and the type of resistance wire they use (Kanthal, nickel, etc.) to set up your mod or battery correctly. If the resistance is low (less than 1 omh), don’t turn up the power of your mod too much.