Compare ILB Helios Group NA250WP60-156/J vs Yingli YL285D-30b

Warranty Terms

Output Warranty:

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

Materials Warranty: 10 Years

Panel Performance

Rated Power: 250 Wp

Efficiency: 15.3 %

Voltage at Maximum Power VMPP: 30.5 V

Current at Maximum Power IMPP: 8.2 A

Open Circuit Voltage VOC: 36.6 V

Short Circuit Current ISC: 9.25 A

Power Tolerance Positive: + 5 %

Maximum System Voltage: 1000 V

Solar Panels Thermal Ranges

Operating Temperature Range: -40~85 °C

Temperature Coefficient of Pmax: -0.45 %/°C

Temperature Coefficient of Voc: -0.32 %/°C

Temperature Coefficient of Isc: 0.047 %/°C

Solar Panel Attributes

Weight: 19.5 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, Low Iron

Warranty Terms

Output Warranty:

10 Years of 91% Output Power, 25 Years of 80% Output Power

Materials Warranty: 10 Years

Panel Performance

Rated Power: 285 Wp

Efficiency: 17.4 %

Voltage at Maximum Power VMPP: 31.7 V

Current at Maximum Power IMPP: 9 A

Open Circuit Voltage VOC: 39.6 V

Short Circuit Current ISC: 9.41 A

Power Tolerance Positive: + 2 %

Maximum System Voltage: 1000 V

Solar Panels Thermal Ranges

Operating Temperature Range: -40~85 °C

Temperature Coefficient of Pmax: -0.42 %/°C

Temperature Coefficient of Voc: -0.32 %/°C

Temperature Coefficient of Isc: 0.05 %/°C

Solar Panel Attributes

Weight: 18.5 kg

Cell Type: Monocrystalline

Cell Count: unknown

Glass Thickness: 3.2 mm

Juntion Box Protection Class: IP 67

Cable Length: 1000 mm

Glass Type: Tempered, Low Iron