Compare Q Cells 355 vs Atsun ATM-20(20W)

Warranty Terms

Output Warranty:

10 Years of 93.1% Output Power, 25 Years of 85% Output Power

Materials Warranty: 12 Years

Panel Performance

Rated Power: 355 Wp

Efficiency: 19.8 %

Voltage at Maximum Power VMPP: 34.55 V

Current at Maximum Power IMPP: 10.28 A

Open Circuit Voltage VOC: 40.95 V

Short Circuit Current ISC: 10.79 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: -0.35 %/°C

Temperature Coefficient of Voc: -0.27 %/°C

Temperature Coefficient of Isc: 0.04 %/°C

Solar Panel Attributes

Weight: 19.9 kg

Cell Type: Monocrystalline

Cell Count: 120

Glass Thickness: 3.2 mm

Juntion Box Protection Class: IP 67

Cable Length: 1150 mm

Glass Type: Anti-reflection Coating

Warranty Terms

Output Warranty:

unknown

Materials Warranty: unknown

Panel Performance

Rated Power: 20 Wp

Efficiency: 11.5 %

Voltage at Maximum Power VMPP: 18 V

Current at Maximum Power IMPP: 1.11 A

Open Circuit Voltage VOC: 22 V

Short Circuit Current ISC: 1.2 A

Power Tolerance Positive: + 3 %

Maximum System Voltage: 1000 V

Solar Panels Thermal Ranges

Operating Temperature Range: -40~85 °C

Temperature Coefficient of Pmax: -0.521 %/°C

Temperature Coefficient of Voc: -0.395 %/°C

Temperature Coefficient of Isc: 0.057 %/°C

Solar Panel Attributes

Weight: 2.4 kg

Cell Type: Monocrystalline

Cell Count: 36

Glass Thickness: unknown

Juntion Box Protection Class: unknown

Cable Length: unknown

Glass Type: unknown