Compare Sunday-Seoul Marine STEP 5 300W vs Sunky Zhouhao Solar Technology SUN20M-12

Warranty Terms

Output Warranty:

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

Materials Warranty: 10 Years

Panel Performance

Rated Power: 300 Wp

Efficiency: 18.25 %

Voltage at Maximum Power VMPP: 33.26 V

Current at Maximum Power IMPP: 9.02 A

Open Circuit Voltage VOC: 40.08 V

Short Circuit Current ISC: 9.67 A

Power Tolerance Positive: + 1.5 %

Maximum System Voltage: unknown

Solar Panels Thermal Ranges

Operating Temperature Range: -40~90 °C

Temperature Coefficient of Pmax: -0.35 %/°C

Temperature Coefficient of Voc: unknown

Temperature Coefficient of Isc: 0.04 %/°C

Solar Panel Attributes

Weight: 18.4 kg

Cell Type: PERC

Cell Count: 60

Glass Thickness: unknown

Juntion Box Protection Class: unknown

Cable Length: 1000 mm

Glass Type: Tempered, High Transmittance

Warranty Terms

Output Warranty:

unknown

Materials Warranty: unknown

Panel Performance

Rated Power: 20 Wp

Efficiency:

Voltage at Maximum Power VMPP: 18.2 V

Current at Maximum Power IMPP: 1.1 A

Open Circuit Voltage VOC: 22.4 V

Short Circuit Current ISC: 1.19 A

Power Tolerance Positive: + 3 %

Maximum System Voltage: 715 V

Solar Panels Thermal Ranges

Operating Temperature Range: -40~85 °C

Temperature Coefficient of Pmax: -0.43 %/°C

Temperature Coefficient of Voc: -0.33 %/°C

Temperature Coefficient of Isc: 0.035 %/°C

Solar Panel Attributes

Weight: 1.95 kg

Cell Type: Monocrystalline

Cell Count: 36

Glass Thickness: unknown

Juntion Box Protection Class: IP 65

Cable Length: unknown

Glass Type: unknown