Wax pen vapes utilize a slightly different heating element than e-juice atomizers. The coil is generally exposed so it can make direct contact with your wax. As the coil rapidly heats the concentrate, vapor is created.
The instant effects of wax pens have made them very popular among daily concentrate enthusiasts.
Do You Put Wax Directly on a Coil?
With either Terp Pen model you can place wax directly on the coil then cap the unit or dip the coil directly into your concentrate container.