Compare Wotech Solar Group WT275 Poly 5bb vs Qiangsheng QSM-220

Warranty Terms

Output Warranty:

10 Years of 90% Output Power, 20 Years of 85% Output Power

Materials Warranty: 12 Years

Panel Performance

Rated Power: 275 Wp

Efficiency: 16.9 %

Voltage at Maximum Power VMPP: 31.6 V

Current at Maximum Power IMPP: 8.71 A

Open Circuit Voltage VOC: 38.8 V

Short Circuit Current ISC: 9.02 A

Power Tolerance Positive: + 5 %

Maximum System Voltage: unknown

Solar Panels Thermal Ranges

Operating Temperature Range: unknown

Temperature Coefficient of Pmax: unknown

Temperature Coefficient of Voc: unknown

Temperature Coefficient of Isc: unknown

Solar Panel Attributes

Weight: 17.5 kg

Cell Type: Polycrystalline

Cell Count: 60

Glass Thickness: 3.2 mm

Juntion Box Protection Class: unknown

Cable Length: 900 mm

Glass Type: Tempered, Low Iron

Warranty Terms

Output Warranty:

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

Materials Warranty: 10 Years

Panel Performance

Rated Power: 220 Wp

Efficiency: 17.1 %

Voltage at Maximum Power VMPP: 24.6 V

Current at Maximum Power IMPP: 8.94 A

Open Circuit Voltage VOC: 31.1 V

Short Circuit Current ISC: 9.48 A

Power Tolerance Positive: + 3 %

Maximum System Voltage: 1000 V

Solar Panels Thermal Ranges

Operating Temperature Range: unknown

Temperature Coefficient of Pmax: -0.43 %/°C

Temperature Coefficient of Voc: -0.32 %/°C

Temperature Coefficient of Isc: 0.059 %/°C

Solar Panel Attributes

Weight: 15 kg

Cell Type: Monocrystalline

Cell Count: 48

Glass Thickness: 3.2 mm

Juntion Box Protection Class: IP 67

Cable Length: 850 mm

Glass Type: Tempered