Compare Haotech 55P-12 vs BJ Power ECS-310P72

Warranty Terms

Output Warranty:

10 Years of 90% Output Power, 25 Years of 85% Output Power

Materials Warranty: 5 Years

Panel Performance

Rated Power: 55 Wp

Efficiency: 13.78 %

Voltage at Maximum Power VMPP: 18.2 V

Current at Maximum Power IMPP: 3.02 A

Open Circuit Voltage VOC: 22.2 V

Short Circuit Current ISC: 3.26 A

Power Tolerance Positive: + 5 %

Maximum System Voltage: 1000 V

Solar Panels Thermal Ranges

Operating Temperature Range: -40~85 °C

Temperature Coefficient of Pmax: -0.4 %/°C

Temperature Coefficient of Voc: -0.3 %/°C

Temperature Coefficient of Isc: 0.05 %/°C

Solar Panel Attributes

Weight: 5 kg

Cell Type: Polycrystalline

Cell Count: 36

Glass Thickness: 3.2 mm

Juntion Box Protection Class: IP 67

Cable Length: 900 mm

Glass Type: Tempered, Anti-reflection Coating, Low Iron

Warranty Terms

Output Warranty:

12 Years of 90% Output Power, 25 Years of 80% Output Power

Materials Warranty: 12 Years

Panel Performance

Rated Power: 310 Wp

Efficiency: 16 %

Voltage at Maximum Power VMPP: 36.9 V

Current at Maximum Power IMPP: 8.4 A

Open Circuit Voltage VOC: 45.3 V

Short Circuit Current ISC: 8.86 A

Power Tolerance Positive: + 3 %

Maximum System Voltage: 1000 V

Solar Panels Thermal Ranges

Operating Temperature Range: -40~80 °C

Temperature Coefficient of Pmax: -0.4 %/°C

Temperature Coefficient of Voc: -0.31 %/°C

Temperature Coefficient of Isc: 0.04 %/°C

Solar Panel Attributes

Weight: 23 kg

Cell Type: Polycrystalline

Cell Count: 72

Glass Thickness: unknown

Juntion Box Protection Class: unknown

Cable Length: unknown

Glass Type: Tempered, Low Iron