Compare ET Solar Group ET-M648WW/WB 225 vs BQ Solartech BQ-320-BMB-DG

Warranty Terms

Output Warranty:

25 Years of 81.4% Output Power

Materials Warranty: 10 Years

Panel Performance

Rated Power: 225 Wp

Efficiency: 17.13 %

Voltage at Maximum Power VMPP: 25.29 V

Current at Maximum Power IMPP: 8.9 A

Open Circuit Voltage VOC: 31.41 V

Short Circuit Current ISC: 9.23 A

Power Tolerance Positive: + 2 %

Maximum System Voltage: 1000 V

Solar Panels Thermal Ranges

Operating Temperature Range: -40~85 °C

Temperature Coefficient of Pmax: -0.42 %/°C

Temperature Coefficient of Voc: -0.3 %/°C

Temperature Coefficient of Isc: 0.05 %/°C

Solar Panel Attributes

Weight: 15 kg

Cell Type: Monocrystalline

Cell Count: 48

Glass Thickness: unknown

Juntion Box Protection Class: IP 67

Cable Length: unknown

Glass Type: unknown

Warranty Terms

Output Warranty:

30 Years of 83% Output Power

Materials Warranty: 15 Years

Panel Performance

Rated Power: 320 Wp

Efficiency: 18.46 %

Voltage at Maximum Power VMPP: 34.3 V

Current at Maximum Power IMPP: 9.33 A

Open Circuit Voltage VOC: 40.7 V

Short Circuit Current ISC: 9.84 A

Power Tolerance Positive: + 1.5 %

Maximum System Voltage: 1500 V

Solar Panels Thermal Ranges

Operating Temperature Range: -40~85 °C

Temperature Coefficient of Pmax: -0.36 %/°C

Temperature Coefficient of Voc: -0.28 %/°C

Temperature Coefficient of Isc: 0.05 %/°C

Solar Panel Attributes

Weight: 22.5 kg

Cell Type: Bifacial

Cell Count: unknown

Glass Thickness: unknown

Juntion Box Protection Class: IP 68

Cable Length: 1200 mm

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