We are authorized Taramps resellers. You will receive one Smart Charger 120A power supply. We offer a 30 day guarantee for the power supply's installation.
This means that, if you have a problem with the power supply when you install it, then we will ask you to contact Taramps' support and open a case with them. After the case is opened, if they detect that there is a problem with the power supply, they will then send us a replacement. Taramps has support centers in several countries, including the US.