Compare ILB Helios Group NA290WM72-156/J vs IREX Energy Joint Stock IR245M-54

Warranty Terms

Output Warranty:

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

Materials Warranty: 10 Years

Panel Performance

Rated Power: 290 Wp

Efficiency: 14.95 %

Voltage at Maximum Power VMPP: 36.16 V

Current at Maximum Power IMPP: 8.02 A

Open Circuit Voltage VOC: 44.2 V

Short Circuit Current ISC: 8.52 A

Power Tolerance Positive: + 5 %

Maximum System Voltage: 1000 V

Solar Panels Thermal Ranges

Operating Temperature Range: -40~85 °C

Temperature Coefficient of Pmax: -0.42 %/°C

Temperature Coefficient of Voc: -0.34 %/°C

Temperature Coefficient of Isc: 0.06 %/°C

Solar Panel Attributes

Weight: 22 kg

Cell Type: Monocrystalline

Cell Count: 72

Glass Thickness: 3.2 mm

Juntion Box Protection Class: IP 67

Cable Length: 1000 mm

Glass Type: Tempered, Low Iron

Warranty Terms

Output Warranty:

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

Materials Warranty: 12 Years

Panel Performance

Rated Power: 245 Wp

Efficiency: 16.7 %

Voltage at Maximum Power VMPP: 28.37 V

Current at Maximum Power IMPP: 8.64 A

Open Circuit Voltage VOC: 34.97 V

Short Circuit Current ISC: 9.16 A

Power Tolerance Positive: + 3 %

Maximum System Voltage: 1500 V

Solar Panels Thermal Ranges

Operating Temperature Range: -40~85 °C

Temperature Coefficient of Pmax: -0.423 %/°C

Temperature Coefficient of Voc: -0.307 %/°C

Temperature Coefficient of Isc: 0.039 %/°C

Solar Panel Attributes

Weight: 18 kg

Cell Type: Monocrystalline

Cell Count: 54

Glass Thickness: unknown

Juntion Box Protection Class: IP 67

Cable Length: 900 mm

Glass Type: Tempered, High Transmittance, Low Iron