Compare SPS Istem 290M vs Hemao Energy xm-3

Warranty Terms

Output Warranty:

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

Materials Warranty: unknown

Panel Performance

Rated Power: 290 Wp

Efficiency: 17.8 %

Voltage at Maximum Power VMPP: 31.87 V

Current at Maximum Power IMPP: 9.1 A

Open Circuit Voltage VOC: 38.31 V

Short Circuit Current ISC: 9.63 A

Power Tolerance Positive: + 1.5 %

Maximum System Voltage: 1000 V

Solar Panels Thermal Ranges

Operating Temperature Range: unknown

Temperature Coefficient of Pmax: -0.4 %/°C

Temperature Coefficient of Voc: -0.34 %/°C

Temperature Coefficient of Isc: 0.03 %/°C

Solar Panel Attributes

Weight: 19 kg

Cell Type: PERC

Cell Count: 60

Glass Thickness: 3.2 mm

Juntion Box Protection Class: IP 67

Cable Length: unknown

Glass Type: Anti-reflection Coating

Warranty Terms

Output Warranty:

12 Years of 98% Output Power, 25 Years of 97% Output Power

Materials Warranty: 25 Years

Panel Performance

Rated Power: 390 Wp

Efficiency: 19.6 %

Voltage at Maximum Power VMPP: 40.63 V

Current at Maximum Power IMPP: 9.06 A

Open Circuit Voltage VOC: 49.42 V

Short Circuit Current ISC: 10.14 A

Power Tolerance Positive: + 5 %

Maximum System Voltage: 1500 V

Solar Panels Thermal Ranges

Operating Temperature Range: -40~+85 °C

Temperature Coefficient of Pmax: -0.37 %/°C

Temperature Coefficient of Voc: -0.3 %/°C

Temperature Coefficient of Isc: 0.06 %/°C

Solar Panel Attributes

Weight: 28.5 kg

Cell Type: Bifacial, PERC

Cell Count: 72

Glass Thickness: 4 mm

Juntion Box Protection Class: IP 68

Cable Length: 400 mm

Glass Type: Double Glass