Compare Fivestar Solar Energy SW250P vs Qiangsheng QSM-280

Warranty Terms

Output Warranty:

10 Years of 90% Output Power, 25 Years of 80% Output Power

Materials Warranty: 5 Years

Panel Performance

Rated Power: 250 Wp

Efficiency: 15.5 %

Voltage at Maximum Power VMPP: 31.2 V

Current at Maximum Power IMPP: 8.01 A

Open Circuit Voltage VOC: 37.6 V

Short Circuit Current ISC: 8.53 A

Power Tolerance Positive: + 2 %

Maximum System Voltage: 1000 V

Solar Panels Thermal Ranges

Operating Temperature Range: -40~85 °C

Temperature Coefficient of Pmax: unknown

Temperature Coefficient of Voc: unknown

Temperature Coefficient of Isc: unknown

Solar Panel Attributes

Weight: 19.4 kg

Cell Type: Polycrystalline

Cell Count: 60

Glass Thickness: 3.2 mm

Juntion Box Protection Class: IP 65

Cable Length: 1000 mm

Glass Type: Tempered, Low Iron

Warranty Terms

Output Warranty:

10 Years of 90% Output Power, 25 Years of 80% Output Power

Materials Warranty: 10 Years

Panel Performance

Rated Power: 280 Wp

Efficiency: 17.41 %

Voltage at Maximum Power VMPP: 31.95 V

Current at Maximum Power IMPP: 8.77 A

Open Circuit Voltage VOC: 39.22 V

Short Circuit Current ISC: 9.3 A

Power Tolerance Positive: + 3 %

Maximum System Voltage: 1000 V

Solar Panels Thermal Ranges

Operating Temperature Range: unknown

Temperature Coefficient of Pmax: -0.42 %/°C

Temperature Coefficient of Voc: -0.34 %/°C

Temperature Coefficient of Isc: 0.045 %/°C

Solar Panel Attributes

Weight: 18 kg

Cell Type: Monocrystalline

Cell Count: 60

Glass Thickness: 3.2 mm

Juntion Box Protection Class: IP 65

Cable Length: 850 mm

Glass Type: Tempered