This from Wikipedia: When one considers that there are at least 60 pharmacologically-active compounds in cannabis and that the aromatic terpenoids begin to vaporize at 126C, but the more bio-active cannabidiol (CBD), Cannabinol (CBN), and delta-9-tetrahydrocannabinol (THC) do not vaporize until near their respective flash points: CBD 206.3C,[6] CBN 212.7C,[7] THC 149.3C[8] then it becomes apparent that the only way to get a full spectrum vapor inhalation is to extract and deliver rapidly from a small sample at a time. Because most commercial vaporizers are slow in extraction and delivery, the vapor inhaled is first aromatic, but only minimally active; and then as the plant material temperature rises, the vapor becomes increasingly bio-active, but minimally aromatic, because most of the aromatics have already been released.
This is interesting because if you could adjust temperature, you could theoretically dial in the type of buzz you wanted. Slightly lower temp is primarily THC. Slight increase and you start to incorporate more CBD and CBN
And I'm not sure what the temp is on these iolites. I looked at an old thread on another forum and someone said that the i-inhales were set to 190C. That seems perfect. But how do we know what the temp really is?