1000W LCD Solar Grid-Tie Inverter, MPPT Pure Sine Wave On-Grid — DC22-65V or 45-90V Input to 110/230 AC, Low Battery Cut Off, Prolong Lifespan — WITH LIMITER_22-65V_95-265V

Connection points and purpose: DC input positive — attach the positive conductor from your solar array to this terminal (connects to the solar panels' positive pole). DC input negative — attach the negative conductor from the solar array to this terminal (connects to the solar panels' negative pole). Limit sensor connection — a dedicated port for the limiter; refer to the user manual for setup and operation of the limit function. AC socket — use this socket and the AC cable to connect the inverter to the public grid.