I ordered some of these because I like vaping at a higher voltage than the 3. Ohm will allow. Besides it is easier than rebuilding the others to 4. Ohms. These coils are great. They give me the hotter vape I was looking for and mass vapor without scorching the juice. They are as close to a Fusion as you can get with an atomizer. Great flavor. These are what I will be ordering from now on. I'm using them in my DBox and it is a marriage made in heaven.