Compare Wisebiz WB-4M vs PV Solar Tech SPR-E20-327W

Warranty Terms

Output Warranty:

25 Years of 80% Output Power

Materials Warranty: 10 Years

Panel Performance

Rated Power: 4 Wp

Efficiency: 6.05 %

Voltage at Maximum Power VMPP: 16.8 V

Current at Maximum Power IMPP: 0.24 A

Open Circuit Voltage VOC: 21 V

Short Circuit Current ISC: 0.3 A

Power Tolerance Positive: + 3 %

Maximum System Voltage: unknown

Solar Panels Thermal Ranges

Operating Temperature Range: unknown

Temperature Coefficient of Pmax: -0.5 %/°C

Temperature Coefficient of Voc: -0.37 %/°C

Temperature Coefficient of Isc: 0.02 %/°C

Solar Panel Attributes

Weight: 0.8 kg

Cell Type: Monocrystalline

Cell Count: 36

Glass Thickness: unknown

Juntion Box Protection Class: IP 65

Cable Length: unknown

Glass Type: unknown

Warranty Terms

Output Warranty:

10 Years of 93% Output Power, 30 Years of 70% Output Power

Materials Warranty: 10 Years

Panel Performance

Rated Power: 327 Wp

Efficiency: 20.4 %

Voltage at Maximum Power VMPP: 54.7 V

Current at Maximum Power IMPP: 5.98 A

Open Circuit Voltage VOC: 64.9 V

Short Circuit Current ISC: 6.46 A

Power Tolerance Positive: + 5 %

Maximum System Voltage: 1000 V

Solar Panels Thermal Ranges

Operating Temperature Range: -40~+85 °C

Temperature Coefficient of Pmax: -0.38 %/°C

Temperature Coefficient of Voc: -0.27 %/°C

Temperature Coefficient of Isc: 0.054 %/°C

Solar Panel Attributes

Weight: 18.6 kg

Cell Type: Monocrystalline

Cell Count: 96

Glass Thickness: 3.2 mm

Juntion Box Protection Class: IP 65

Cable Length: 900 mm

Glass Type: Tempered, Anti-reflection Coating, High Transmittance