On/Off Grid Solar Air Conditioner works perfectly under AC only, DC only or AC+DC, high SEER, wide voltage design, works perfectly under normal and T3 tropical climate. It equipped with MPPT PV tracking system, utilize the PV DC power as priority. DC directly power the indoor&outdoor fan motors and the compressor. When the DC power is not sufficient, the AC power helps, thus achieve continuously power supply. Wide voltage design, freely use different PV panel configuration according to your installation space.