The Growatt MIC 2500-X is a light and compact residential inverter. The maximum DC voltage is 500V, a start voltage of 50V. There is one MPPT with a maximum input of 13A and features a DC switch, surge protection, and an option for AFCI. Growatt has confirmed that although the use of CT is mentioned in the user manual, because issues have been found with this type of option, they decided to stop promoting CT for limitation to the grid altogether. Therefore, now they recommend the use of the Growatt SPM ONLY for that purpose.