Compare SunPower SPR-A-420-AC vs Sunday Energy SDP-255

Warranty Terms

Output Warranty:

unknown

Materials Warranty: unknown

Panel Performance

Rated Power: 420 Wp

Efficiency: 21.2 %

Voltage at Maximum Power VMPP: 42.7 V

Current at Maximum Power IMPP: 10.1 A

Open Circuit Voltage VOC: 51.2 V

Short Circuit Current ISC: 10.9 A

Power Tolerance Positive: + 1 %

Maximum System Voltage: 1500 V

Solar Panels Thermal Ranges

Operating Temperature Range: -40~85 °C

Temperature Coefficient of Pmax: -0.29 %/°C

Temperature Coefficient of Voc: unknown

Temperature Coefficient of Isc: unknown

Solar Panel Attributes

Weight: 21.6 kg

Cell Type: Monocrystalline

Cell Count: 72

Glass Thickness: 3 mm

Juntion Box Protection Class: IP 68

Cable Length: 1320 mm

Glass Type: Tempered, Anti-reflection Coating, High Transmittance

Warranty Terms

Output Warranty:

unknown

Materials Warranty: unknown

Panel Performance

Rated Power: 255 Wp

Efficiency: 15.7 %

Voltage at Maximum Power VMPP: 30.74 V

Current at Maximum Power IMPP: 8.3 A

Open Circuit Voltage VOC: 37.77 V

Short Circuit Current ISC: 8.78 A

Power Tolerance Positive: + 2 %

Maximum System Voltage: 1000 V

Solar Panels Thermal Ranges

Operating Temperature Range: -40~85 °C

Temperature Coefficient of Pmax: -0.41 %/°C

Temperature Coefficient of Voc: -0.34 %/°C

Temperature Coefficient of Isc: 0.04 %/°C

Solar Panel Attributes

Weight: 18 kg

Cell Type: Polycrystalline

Cell Count: 60

Glass Thickness: 3.2 mm

Juntion Box Protection Class: IP 67

Cable Length: 1000 mm

Glass Type: Tempered