Compare ET Solar Group ET-M660285BB vs Topsky Energy BIFI-305w

Warranty Terms

Output Warranty:

25 Years of 81.4% Output Power

Materials Warranty: 10 Years

Panel Performance

Rated Power: 285 Wp

Efficiency: 17.52 %

Voltage at Maximum Power VMPP: 31.85 V

Current at Maximum Power IMPP: 8.95 A

Open Circuit Voltage VOC: 39.18 V

Short Circuit Current ISC: 9.46 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:

10 Years of 90.3% Output Power, 25 Years of 80.7% Output Power

Materials Warranty: 10 Years

Panel Performance

Rated Power: 305 Wp

Efficiency: 18.4 %

Voltage at Maximum Power VMPP: 33.8 V

Current at Maximum Power IMPP: 9.02 A

Open Circuit Voltage VOC: 40.2 V

Short Circuit Current ISC: 9.76 A

Power Tolerance Positive: + 3 %

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: -0.30 %/°C

Temperature Coefficient of Isc: 0.06 %/°C

Solar Panel Attributes

Weight: 18.5 kg

Cell Type: Bifacial, PERC

Cell Count: 60

Glass Thickness: 3.2 mm

Juntion Box Protection Class: IP 67

Cable Length: 900 mm

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