Compare ET Solar Group ET-M672335WW/WB vs Empire Photovoltaic Systems EPG-135

Warranty Terms

Output Warranty:

25 Years of 81.4% Output Power

Materials Warranty: 10 Years

Panel Performance

Rated Power: 335 Wp

Efficiency: 17.26 %

Voltage at Maximum Power VMPP: 37.94 V

Current at Maximum Power IMPP: 8.83 A

Open Circuit Voltage VOC: 46.75 V

Short Circuit Current ISC: 9.33 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: -0.42 %/°C

Temperature Coefficient of Voc: -0.3 %/°C

Temperature Coefficient of Isc: 0.05 %/°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

Warranty Terms

Output Warranty:

10 Years of 90.7% Output Power, 25 Years of 80.2% Output Power

Materials Warranty: 5 Years

Panel Performance

Rated Power: 135 Wp

Efficiency: 13.36 %

Voltage at Maximum Power VMPP: 17.32 V

Current at Maximum Power IMPP: 7.8 A

Open Circuit Voltage VOC: 21.6 V

Short Circuit Current ISC: 8.4 A

Power Tolerance Positive: unknown

Maximum System Voltage: 1000 V

Solar Panels Thermal Ranges

Operating Temperature Range: -40~85 °C

Temperature Coefficient of Pmax: -0.46 %/°C

Temperature Coefficient of Voc: -0.34 %/°C

Temperature Coefficient of Isc: 0.07 %/°C

Solar Panel Attributes

Weight: 13 kg

Cell Type: Polycrystalline

Cell Count: 36

Glass Thickness: 3.2 mm

Juntion Box Protection Class: unknown

Cable Length: unknown

Glass Type: Tempered, Low Iron