Compare Holisolar HL60MB325 vs OK Solar OKM290

Warranty Terms

Output Warranty:

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

Materials Warranty: 25 Years

Panel Performance

Rated Power: 325 Wp

Efficiency: 19.6 %

Voltage at Maximum Power VMPP: 33.57 V

Current at Maximum Power IMPP: 9.69 A

Open Circuit Voltage VOC: 39.22 V

Short Circuit Current ISC: 10.16 A

Power Tolerance Positive: + 2 %

Maximum System Voltage: 1000 V

Solar Panels Thermal Ranges

Operating Temperature Range: -45~85 °C

Temperature Coefficient of Pmax: -0.391 %/°C

Temperature Coefficient of Voc: -0.306 %/°C

Temperature Coefficient of Isc: 0.045 %/°C

Solar Panel Attributes

Weight: 19.2 kg

Cell Type: Monocrystalline

Cell Count: 120

Glass Thickness: 3.2 mm

Juntion Box Protection Class: IP 67

Cable Length: 300 mm

Glass Type: Tempered, High Transmittance

Warranty Terms

Output Warranty:

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

Materials Warranty: 15 Years

Panel Performance

Rated Power: 290 Wp

Efficiency: 17.6 %

Voltage at Maximum Power VMPP: 31.58 V

Current at Maximum Power IMPP: 9.2 A

Open Circuit Voltage VOC: 39.6 V

Short Circuit Current ISC: 9.66 A

Power Tolerance Positive: + 2 %

Maximum System Voltage: 1000 V

Solar Panels Thermal Ranges

Operating Temperature Range: unknown

Temperature Coefficient of Pmax: -0.42 %/°C

Temperature Coefficient of Voc: -0.3 %/°C

Temperature Coefficient of Isc: 0.04 %/°C

Solar Panel Attributes

Weight: 19.5 kg

Cell Type: Monocrystalline

Cell Count: 60

Glass Thickness: 3.2 mm

Juntion Box Protection Class: IP 67

Cable Length: 1100 mm

Glass Type: Tempered, Anti-reflection Coating