Compare Rongma New Energy RM72-156P/305 vs Helli Zhanchuang Electronic Technology HL-55W

Warranty Terms

Output Warranty:

unknown

Materials Warranty: unknown

Panel Performance

Rated Power: 305 Wp

Efficiency: 15.72 %

Voltage at Maximum Power VMPP: 36.97 V

Current at Maximum Power IMPP: 8.25 A

Open Circuit Voltage VOC: 44.9 V

Short Circuit Current ISC: 8.88 A

Power Tolerance Positive: + 3 %

Maximum System Voltage: 1000 V

Solar Panels Thermal Ranges

Operating Temperature Range: -40~85 °C

Temperature Coefficient of Pmax: -0.41 %/°C

Temperature Coefficient of Voc: -0.31 %/°C

Temperature Coefficient of Isc: 0.06 %/°C

Solar Panel Attributes

Weight: 25.8 kg

Cell Type: Polycrystalline

Cell Count: 72

Glass Thickness: 3.2 mm

Juntion Box Protection Class: IP 67

Cable Length: 1000 mm

Glass Type: Tempered, High Transmittance

Warranty Terms

Output Warranty:

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

Materials Warranty: 3 Years

Panel Performance

Rated Power: 55 Wp

Efficiency: 11 %

Voltage at Maximum Power VMPP: 17.2 V

Current at Maximum Power IMPP: 3.2 A

Open Circuit Voltage VOC: 21.6 V

Short Circuit Current ISC: 3.64 A

Power Tolerance Positive: + 10 %

Maximum System Voltage: unknown

Solar Panels Thermal Ranges

Operating Temperature Range: -40~85 °C

Temperature Coefficient of Pmax: -0.44 %/°C

Temperature Coefficient of Voc: -0.36 %/°C

Temperature Coefficient of Isc: 0.033 %/°C

Solar Panel Attributes

Weight: 7 kg

Cell Type: Monocrystalline

Cell Count: unknown

Glass Thickness: unknown

Juntion Box Protection Class: IP 65

Cable Length: 900 mm

Glass Type: Tempered