●1. Creative MPPT technology,efficiency over 99%,MPPT range:26V-36V ●2. In order to ensure good output efficiency, the VMP must be within the MPPT range ●3.24V/30V Solar Panel: Vmp: 26-30V, Voc 34-38V. 36V Solar Panel: Vmp: 35-39V, Voc 42-46V ●4. Small volume, distributed installation, easy system configuration, stackable, easy to install ●5. Not for use with 24v battery