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Compare ILB Helios Group NA290WM72-156/J vs IREX Energy Joint Stock IR275M-60DG

ILB Helios Group

NA290WM72-156/J

Model: NA290WM72-156/J

Series: NA E-Class 270-300

Manufacturer: ILB Helios Group

Rated Power: 290 Wp

EnergyPal ILB Helios Group Solar Panels NA E-Class 270-300 NA290WM72-156/J
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

Model: IR275M-60DG

Series: IR275M-315M-60DG

Manufacturer: IREX Energy Joint Stock

Rated Power: 275 Wp

EnergyPal IREX Energy Joint Stock Solar Panels IR275M-315M-60DG IR275M-60DG
Warranty Terms

Output Warranty:

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

Materials Warranty: 12 Years


Panel Performance

Rated Power: 275 Wp

Efficiency: 16.7 %

Voltage at Maximum Power VMPP: 31.54 V

Current at Maximum Power IMPP: 8.72 A

Open Circuit Voltage VOC: 38.89 V

Short Circuit Current ISC: 9.24 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: 20 kg

Cell Type: Monocrystalline

Cell Count: 60

Glass Thickness: unknown

Juntion Box Protection Class: IP 67

Cable Length: 900 mm

Glass Type: Tempered, High Transmittance, Low Iron