Compare Wukii Solar Technology WK120-18-M vs Sunny Apex Development SA-EC20

Warranty Terms

Output Warranty:

unknown

Materials Warranty: 12 Years

Panel Performance

Rated Power: 120 Wp

Efficiency: 15.49 %

Voltage at Maximum Power VMPP: 18.21 V

Current at Maximum Power IMPP: 6.58 A

Open Circuit Voltage VOC: 22.26 V

Short Circuit Current ISC: 7.07 A

Power Tolerance Positive: + 3 %

Maximum System Voltage: unknown

Solar Panels Thermal Ranges

Operating Temperature Range: -40~85 °C

Temperature Coefficient of Pmax: -0.435 %/°C

Temperature Coefficient of Voc: -0.35 %/°C

Temperature Coefficient of Isc: 0.043 %/°C

Solar Panel Attributes

Weight: unknown

Cell Type: Monocrystalline

Cell Count: 36

Glass Thickness: 3.2 mm

Juntion Box Protection Class: IP 65

Cable Length: 90 mm

Glass Type: Anti-reflection Coating, High Transmittance

Warranty Terms

Output Warranty:

20 Years of 80% Output Power

Materials Warranty: 2 Years

Panel Performance

Rated Power: 20 Wp

Efficiency: 10.7 %

Voltage at Maximum Power VMPP: 17.4 V

Current at Maximum Power IMPP: 1.15 A

Open Circuit Voltage VOC: 21.9 V

Short Circuit Current ISC: 1.29 A

Power Tolerance Positive: + 10 %

Maximum System Voltage: 600 V

Solar Panels Thermal Ranges

Operating Temperature Range: unknown

Temperature Coefficient of Pmax: -0.43 %/°C

Temperature Coefficient of Voc: -0.36 %/°C

Temperature Coefficient of Isc: 0.06 %/°C

Solar Panel Attributes

Weight: 2.3 kg

Cell Type: Polycrystalline

Cell Count: 36

Glass Thickness: unknown

Juntion Box Protection Class: IP 65

Cable Length: 500 mm

Glass Type: Tempered