Compare Hershey-Power HS120-P-290 vs Wisebiz WB-305W

Warranty Terms

Output Warranty:

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

Materials Warranty: 12 Years

Panel Performance

Rated Power: 290 Wp

Efficiency: 17.3 %

Voltage at Maximum Power VMPP: 32.6 V

Current at Maximum Power IMPP: 8.9 A

Open Circuit Voltage VOC: 38.75 V

Short Circuit Current ISC: 9.5 A

Power Tolerance Positive: unknown

Maximum System Voltage: 1500 V

Solar Panels Thermal Ranges

Operating Temperature Range: -40~85 °C

Temperature Coefficient of Pmax: -0.39 %/°C

Temperature Coefficient of Voc: -0.32 %/°C

Temperature Coefficient of Isc: 0.055 %/°C

Solar Panel Attributes

Weight: 19 kg

Cell Type: Polycrystalline

Cell Count: 120

Glass Thickness: 3.2 mm

Juntion Box Protection Class: IP 68

Cable Length: unknown

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

Warranty Terms

Output Warranty:

25 Years of 80% Output Power

Materials Warranty: 10 Years

Panel Performance

Rated Power: 305 Wp

Efficiency: 15.71 %

Voltage at Maximum Power VMPP: 35.9 V

Current at Maximum Power IMPP: 8.5 A

Open Circuit Voltage VOC: 44.8 V

Short Circuit Current ISC: 8.84 A

Power Tolerance Positive: + 3 %

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: -0.31 %/°C

Temperature Coefficient of Isc: 0.03 %/°C

Solar Panel Attributes

Weight: 23.5 kg

Cell Type: Monocrystalline

Cell Count: 72

Glass Thickness: 4 mm

Juntion Box Protection Class: IP 65

Cable Length: unknown

Glass Type: unknown