Compare Wiosun C280M vs Kootatu Tech PM 40

Warranty Terms

Output Warranty:

25 Years of 85% Output Power

Materials Warranty: 10 Years

Panel Performance

Rated Power: 280 Wp

Efficiency: 17.21 %

Voltage at Maximum Power VMPP: 31.5 V

Current at Maximum Power IMPP: 8.95 A

Open Circuit Voltage VOC: 39.45 V

Short Circuit Current ISC: 9.55 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: -0.4 %/°C

Temperature Coefficient of Voc: -0.3 %/°C

Temperature Coefficient of Isc: 0.04 %/°C

Solar Panel Attributes

Weight: 18 kg

Cell Type: PERC

Cell Count: 60

Glass Thickness: 3.2 mm

Juntion Box Protection Class: IP 65

Cable Length: 1000 mm

Glass Type: unknown

Warranty Terms

Output Warranty:

10 Years of 90% Output Power

Materials Warranty: unknown

Panel Performance

Rated Power: 40 Wp

Efficiency: 10.68 %

Voltage at Maximum Power VMPP: 23.66 V

Current at Maximum Power IMPP: 1.8 A

Open Circuit Voltage VOC: 29.09 V

Short Circuit Current ISC: 1.93 A

Power Tolerance Positive: + 5 %

Maximum System Voltage: unknown

Solar Panels Thermal Ranges

Operating Temperature Range: unknown

Temperature Coefficient of Pmax: unknown

Temperature Coefficient of Voc: unknown

Temperature Coefficient of Isc: unknown

Solar Panel Attributes

Weight: 5 kg

Cell Type: Polycrystalline

Cell Count: 48

Glass Thickness: 3.2 mm

Juntion Box Protection Class: IP 65

Cable Length: unknown

Glass Type: Tempered, Low Iron