Compare Solar Panels & Manufacturers

Compare ET Solar Group ET-M648BB 220 vs SpolarPV Technology SP325M6-60L

ET Solar Group

ET-M648BB 220

Model: ET-M648BB 220

Series: ET-M648BB 215-230

Manufacturer: ET Solar Group

Rated Power: 220 Wp

EnergyPal ET Solar Group Solar Panels ET-M648BB 215-230 ET-M648BB 220
Warranty Terms

Output Warranty:

25 Years of 81.4% Output Power

Materials Warranty: 10 Years


Panel Performance

Rated Power: 220 Wp

Efficiency: 16.75 %

Voltage at Maximum Power VMPP: 25.21 V

Current at Maximum Power IMPP: 8.73 A

Open Circuit Voltage VOC: 31.26 V

Short Circuit Current ISC: 9.14 A

Power Tolerance Positive: + 2 %

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: 15 kg

Cell Type: Monocrystalline

Cell Count: 48

Glass Thickness: unknown

Juntion Box Protection Class: IP 67

Cable Length: unknown

Glass Type: unknown

Model: SP325M6-60L

Series: SPM6-60L 310-330W

Manufacturer: SpolarPV Technology

Rated Power: 325 Wp

EnergyPal SpolarPV Technology  Solar Panels SPM6-60L 310-330W SP325M6-60L
Warranty Terms

Output Warranty:

12 Years of 90% Output Power, 25 Years of 80.2% Output Power

Materials Warranty: 12 Years


Panel Performance

Rated Power: 325 Wp

Efficiency: 19.7 %

Voltage at Maximum Power VMPP: 33.44 V

Current at Maximum Power IMPP: 9.72 A

Open Circuit Voltage VOC: 41.04 V

Short Circuit Current ISC: 10.25 A

Power Tolerance Positive: + 1.5 %

Maximum System Voltage: 1500 V


Solar Panels Thermal Ranges

Operating Temperature Range: -40~85 °C

Temperature Coefficient of Pmax: -0.37 %/°C

Temperature Coefficient of Voc: -0.31 %/°C

Temperature Coefficient of Isc: 0.05 %/°C


Solar Panel Attributes

Weight: 18 kg

Cell Type: Monocrystalline

Cell Count: 72

Glass Thickness: 3.2 mm

Juntion Box Protection Class: IP 67

Cable Length: 900 mm

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