I actually found 5v to be a little to much. I find myself vaping around 4v-4.6v. Different flavors are better at different volts. I find that citrus flavors are better at a lover rating, while others such as cinnamon buns, and other thicker creamier flavors are better at a higher rating to create that "warm" vapor. But, this is just my personal preference, to each their own.