The power adapter is a replacement product for your Arizer Extreme Q, but it’s also compatible with the Arizer V Tower. This power supply is the same product you see when opening the box after purchasing your own vaporizer kit. This is genuine Arizer accessory so you don’t have to worry about the likelihood of short-circuits or faulty voltage connection. If you have two vaporizers, it’s good to know that you have an extra power supply lying around in case you need it. The price for that piece of mind is very affordable so you don’t worry about messing up your budget as a result.