More vapor the LOWER the ohms. Think of ohms as a plug in a water line... the bigger the plug (ohm #) the less water gets
through. It's a measure of electrical resistance.
What are you using them on?
Another way is to calculate watts. Multiply the voltage you
vape at by itself, and divide by the ohms. Thus:
V*V /R. So at 3.2 volts / 2.0 ohms = 3.4 * 3.4 / 2 = 5.12 watts of heat.