the first one came with the unit.....it became faulty after a little less than a year later. I had bought this direct from Stolz & Bickel....then found The Herb Cafe website after, since I couldn't get replacement parts from them because of the pandemic. The one I bought as replacement only lasted 4- 5 weeks...I went to THC for warranty coverage on it....they, in a nice way, told me to "get stuffed" and to S & B to get one. They only cost $40.00, but still, THC should have covered it, and refunded me the $40.00.
Hey Bruce. I'm sorry for the misunderstanding. After reading your email, we thought you had purchased a Mighty directly from S&B then after purchasing the replacement Power Adapter from us, asked us to warranty the adapter on their behalf with the one you had purchased. This is why we said that could only be covered by the manufacturer. We have reached out to you for a resolution. Sorry again for the misunderstanding.