Compare ILB Helios Group NA290WM72-156/J vs Kootatu Tech MM 250

Warranty Terms

Output Warranty:

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

Materials Warranty: 10 Years

Panel Performance

Rated Power: 290 Wp

Efficiency: 14.95 %

Voltage at Maximum Power VMPP: 36.16 V

Current at Maximum Power IMPP: 8.02 A

Open Circuit Voltage VOC: 44.2 V

Short Circuit Current ISC: 8.52 A

Power Tolerance Positive: + 5 %

Maximum System Voltage: 1000 V

Solar Panels Thermal Ranges

Operating Temperature Range: -40~85 °C

Temperature Coefficient of Pmax: -0.42 %/°C

Temperature Coefficient of Voc: -0.34 %/°C

Temperature Coefficient of Isc: 0.06 %/°C

Solar Panel Attributes

Weight: 22 kg

Cell Type: Monocrystalline

Cell Count: 72

Glass Thickness: 3.2 mm

Juntion Box Protection Class: IP 67

Cable Length: 1000 mm

Glass Type: Tempered, Low Iron

Warranty Terms

Output Warranty:

10 Years of 90% Output Power, 20 Years of 80% Output Power

Materials Warranty: unknown

Panel Performance

Rated Power: 250 Wp

Efficiency: 15.07 %

Voltage at Maximum Power VMPP: 29.58 V

Current at Maximum Power IMPP: 8.42 A

Open Circuit Voltage VOC: 8.01 V

Short Circuit Current ISC: 9.17 A

Power Tolerance Positive: + 5 %

Maximum System Voltage: 1000 V

Solar Panels Thermal Ranges

Operating Temperature Range: -40~85 °C

Temperature Coefficient of Pmax: -0.403 %/°C

Temperature Coefficient of Voc: -0.288 %/°C

Temperature Coefficient of Isc: 0.086 %/°C

Solar Panel Attributes

Weight: 21 kg

Cell Type: Monocrystalline

Cell Count: 60

Glass Thickness: 3.2 mm

Juntion Box Protection Class: IP 65

Cable Length: unknown

Glass Type: Tempered, Low Iron