... Solar Inverter System is consist of Solar Controller, Battery, Solar Inverter together in one box SOROTEC Solar Inverter System supply (SPS)SPS consist of Solar Controller, Battery, Solar Inverter ... or 110V , the Inverter is necessary.)The function of every part:1.Solar Panel: Solar panel is the ... Ni-Cd battery or Lithium battery.4.Inverter: The direct output solar power is 12VDC, 24VDC,48VDC.In ...