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Compare ET Solar Group ET-M672330BB vs Holisolar HL60PB280

ET Solar Group

ET-M672330BB

Model: ET-M672330BB

Series: ET-M672BB 320-340

Manufacturer: ET Solar Group

Rated Power: 330 Wp

EnergyPal ET Solar Group Solar Panels ET-M672BB 320-340 ET-M672330BB
Warranty Terms

Output Warranty:

25 Years of 81.4% Output Power

Materials Warranty: 10 Years


Panel Performance

Rated Power: 330 Wp

Efficiency: 17.01 %

Voltage at Maximum Power VMPP: 37.55 V

Current at Maximum Power IMPP: 8.79 A

Open Circuit Voltage VOC: 46.64 V

Short Circuit Current ISC: 9.29 A

Power Tolerance Positive: + 1.5 %

Maximum System Voltage: 1000 V


Solar Panels Thermal Ranges

Operating Temperature Range: -40~85 °C

Temperature Coefficient of Pmax: -0.43 %/°C

Temperature Coefficient of Voc: -0.3 %/°C

Temperature Coefficient of Isc: 0.06 %/°C


Solar Panel Attributes

Weight: 25.7 kg

Cell Type: Monocrystalline

Cell Count: 72

Glass Thickness: unknown

Juntion Box Protection Class: IP 67

Cable Length: unknown

Glass Type: unknown

Holisolar

HL60PB280

Model: HL60PB280

Series: Poly Half-Cell 280W-290W

Manufacturer: Holisolar

Rated Power: 280 Wp

EnergyPal Holisolar Solar Panels Poly Half-Cell 280W-290W HL60PB280
Warranty Terms

Output Warranty:

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

Materials Warranty: 25 Years


Panel Performance

Rated Power: 280 Wp

Efficiency: 16.9 %

Voltage at Maximum Power VMPP: 32.3 V

Current at Maximum Power IMPP: 8.69 A

Open Circuit Voltage VOC: 38.35 V

Short Circuit Current ISC: 9.03 A

Power Tolerance Positive: + 2 %

Maximum System Voltage: 1000 V


Solar Panels Thermal Ranges

Operating Temperature Range: -45~85 °C

Temperature Coefficient of Pmax: -0.389 %/°C

Temperature Coefficient of Voc: -0.32 %/°C

Temperature Coefficient of Isc: 0.051 %/°C


Solar Panel Attributes

Weight: 19.2 kg

Cell Type: Polycrystalline

Cell Count: 120

Glass Thickness: 3.2 mm

Juntion Box Protection Class: IP 67

Cable Length: 300 mm

Glass Type: Tempered, High Transmittance