The Utillian 5 is a budget-friendly option with a 4mm quartz coil for big clouds and intense flavor. The Puffco Plus is a stylish and efficient vape pen that produces smooth and delicious vapor.

Abstract: Systems, eye-mountable devices, and methods that facilitate chronotherapeutic treatment of primary open-angle ...

The build in question is a fairly compact design, roughly shoebox-sized when fitted with its six-turn coil. Running off anything from 12 V to 48 V, the heater put out at a massive 1.4 kW in testing.