Compare ET Solar Group ET-M660280BB vs RNG International RNG-300D

Warranty Terms

Output Warranty:

25 Years of 81.4% Output Power

Materials Warranty: 10 Years

Panel Performance

Rated Power: 280 Wp

Efficiency: 17.21 %

Voltage at Maximum Power VMPP: 31.01 V

Current at Maximum Power IMPP: 9.03 A

Open Circuit Voltage VOC: 39.26 V

Short Circuit Current ISC: 9.23 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: 18.5 kg

Cell Type: Monocrystalline

Cell Count: 60

Glass Thickness: unknown

Juntion Box Protection Class: IP 67

Cable Length: unknown

Glass Type: unknown

Warranty Terms

Output Warranty:

unknown

Materials Warranty: 5 Years

Panel Performance

Rated Power: 300 Wp

Efficiency: 18.24 %

Voltage at Maximum Power VMPP: 32.25 V

Current at Maximum Power IMPP: 9.33 A

Open Circuit Voltage VOC: 39.82 V

Short Circuit Current ISC: 9.78 A

Power Tolerance Positive: unknown

Maximum System Voltage: 1000 V

Solar Panels Thermal Ranges

Operating Temperature Range: -40~90 °C

Temperature Coefficient of Pmax: -0.47 %/°C

Temperature Coefficient of Voc: -0.33 %/°C

Temperature Coefficient of Isc: 0.03 %/°C

Solar Panel Attributes

Weight: 19.4 kg

Cell Type: Monocrystalline

Cell Count: 60

Glass Thickness: 3.2 mm

Juntion Box Protection Class: IP 67

Cable Length: unknown

Glass Type: Tempered