... Best cost performance ratio 4.Use for home solar system 600W 4PCSX150W monocrystallion silicon solar panel 24V 30A ... , computer, refrigerator,printer and fax machineAdvantage: 1.The system structure is simple and its application effect is good. ... certification3. highconversion highefficiency4.high efficiency, long life, easy installation, resist high wind and hail impac5.High transmission rate ...