Compare Realforce Power RF-340M72 vs Helli Zhanchuang Electronic Technology HL-20W

Warranty Terms

Output Warranty:

12 Years of 89.3% Output Power, 25 Years of 80.2% Output Power

Materials Warranty: 12 Years

Panel Performance

Rated Power: 340 Wp

Efficiency: 17.52 %

Voltage at Maximum Power VMPP: 38.29 V

Current at Maximum Power IMPP: 8.88 A

Open Circuit Voltage VOC: 46.92 V

Short Circuit Current ISC: 9.37 A

Power Tolerance Positive: + 1.5 %

Maximum System Voltage: 1500 V

Solar Panels Thermal Ranges

Operating Temperature Range: -40~85 °C

Temperature Coefficient of Pmax: -0.41 %/°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: 900 mm

Glass Type: Tempered

Warranty Terms

Output Warranty:

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

Materials Warranty: 3 Years

Panel Performance

Rated Power: 20 Wp

Efficiency: 11.4 %

Voltage at Maximum Power VMPP: 16.8 V

Current at Maximum Power IMPP: 1.19 A

Open Circuit Voltage VOC: 21 V

Short Circuit Current ISC: 1.36 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: unknown

Cell Type: Monocrystalline

Cell Count: unknown

Glass Thickness: 3.2 mm

Juntion Box Protection Class: IP 65

Cable Length: 900 mm

Glass Type: Tempered