Compare Yingli YL305D-30b vs ILB Helios Group NA170W-PS

Warranty Terms

Output Warranty:

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

Materials Warranty: 12 Years

Panel Performance

Rated Power: 305 Wp

Efficiency: 18.4 %

Voltage at Maximum Power VMPP: 32.6 V

Current at Maximum Power IMPP: 9.36 A

Open Circuit Voltage VOC: 40 V

Short Circuit Current ISC: 9.75 A

Power Tolerance Positive: + 1.5 %

Maximum System Voltage: 1000 V

Solar Panels Thermal Ranges

Operating Temperature Range: -40~85 °C

Temperature Coefficient of Pmax: -0.37 %/°C

Temperature Coefficient of Voc: -0.29 %/°C

Temperature Coefficient of Isc: 0.05 %/°C

Solar Panel Attributes

Weight: 18.5 kg

Cell Type: Monocrystalline

Cell Count: 60

Glass Thickness: 3.2 mm

Juntion Box Protection Class: unknown

Cable Length: 1000 mm

Glass Type: Tempered, Anti-reflection Coating, High Transmittance

Warranty Terms

Output Warranty:

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

Materials Warranty: 10 Years

Panel Performance

Rated Power: 170 Wp

Efficiency: 14.55 %

Voltage at Maximum Power VMPP: 22.42 V

Current at Maximum Power IMPP: 7.58 A

Open Circuit Voltage VOC: 28.7 V

Short Circuit Current ISC: 8 A

Power Tolerance Positive: + 5 %

Maximum System Voltage: 1000 V

Solar Panels Thermal Ranges

Operating Temperature Range: -40~85 °C

Temperature Coefficient of Pmax: -0.4510 %/°C

Temperature Coefficient of Voc: -0.2960 %/°C

Temperature Coefficient of Isc: 0.072 %/°C

Solar Panel Attributes

Weight: 15.7 kg

Cell Type: Polycrystalline

Cell Count: 48

Glass Thickness: 3.2 mm

Juntion Box Protection Class: IP 67

Cable Length: 1000 mm

Glass Type: Tempered, High Transmittance, Low Iron