Offering both variable voltage and variable power, the Sigelei ZMAX offers functionality at an affordable price.
If you're tired of good vapor at the start of a new battery and weak vapor at the end, then the ProVari variable voltage e-cig is for you! The ProVari is a microprocessor controlled variable voltage e-cig that lets you adjust the voltage in seconds with just a few presses of a button.
Converted pipes with a 510 fitting. A great way to vape.