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Compare ET Solar ET-P660H290WW vs ILB Helios Group NA275WM96-125/J

ET Solar

ET-P660H290WW

Model: ET-P660H290WW

Series: 280-290W Poly

Manufacturer: ET Solar

Rated Power: 290 Wp

EnergyPal ET Solar  Solar Panels 280-290W Poly ET-P660H290WW
Warranty Terms

Output Warranty:

unknown

Materials Warranty: 25 Years


Panel Performance

Rated Power: 290 Wp

Efficiency: 17.72 %

Voltage at Maximum Power VMPP: 32.65 V

Current at Maximum Power IMPP: 8.88 A

Open Circuit Voltage VOC: 40.41 V

Short Circuit Current ISC: 9.53 A

Power Tolerance Positive: + 3 %

Maximum System Voltage: unknown


Solar Panels Thermal Ranges

Operating Temperature Range: -40~85 °C

Temperature Coefficient of Pmax: -0.41 %/°C

Temperature Coefficient of Voc: -0.34 %/°C

Temperature Coefficient of Isc: 0.04 %/°C


Solar Panel Attributes

Weight: 18.6 kg

Cell Type: Polycrystalline

Cell Count: 60

Glass Thickness: 3.2 mm

Juntion Box Protection Class: IP 67

Cable Length: 90 mm

Glass Type: Anti-reflection Coating

ILB Helios Group

NA275WM96-125/J

Model: NA275WM96-125/J

Series: NA C-Class 240-275

Manufacturer: ILB Helios Group

Rated Power: 275 Wp

EnergyPal ILB Helios Group Solar Panels NA C-Class 240-275 NA275WM96-125/J
Warranty Terms

Output Warranty:

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

Materials Warranty: 5 Years


Panel Performance

Rated Power: 275 Wp

Efficiency: 16.17 %

Voltage at Maximum Power VMPP: 50.5 V

Current at Maximum Power IMPP: 5.45 A

Open Circuit Voltage VOC: 60.6 V

Short Circuit Current ISC: 6.11 A

Power Tolerance Positive: + 3 %

Maximum System Voltage: 1000 V


Solar Panels Thermal Ranges

Operating Temperature Range: -40~85 °C

Temperature Coefficient of Pmax: -0.42 %/°C

Temperature Coefficient of Voc: -0.30 %/°C

Temperature Coefficient of Isc: 0.034 %/°C


Solar Panel Attributes

Weight: 21.5 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, Low Iron