Compare ET Solar ET-P660H290WW vs Jolywood Sunwatt JW-D72N-370

Warranty Terms

Output Warranty:

unknown

Materials Warranty: 25 Years

Panel Performance

Rated Power: 290 Wp

Efficiency: 17.72 %

Voltage at Maximum Power VMPP: 32.65 V

Current at Maximum Power IMPP: 8.88 A

Open Circuit Voltage VOC: 40.41 V

Short Circuit Current ISC: 9.53 A

Power Tolerance Positive: + 3 %

Maximum System Voltage: unknown

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: 0.04 %/°C

Solar Panel Attributes

Weight: 18.6 kg

Cell Type: Polycrystalline

Cell Count: 60

Glass Thickness: 3.2 mm

Juntion Box Protection Class: IP 67

Cable Length: 90 mm

Glass Type: Anti-reflection Coating

Warranty Terms

Output Warranty:

25 Years of 89.4% Output Power, 30 Years of 87.4% Output Power

Materials Warranty: 15 Years

Panel Performance

Rated Power: 370 Wp

Efficiency: 18.9 %

Voltage at Maximum Power VMPP: 38.4 V

Current at Maximum Power IMPP: 9.66 A

Open Circuit Voltage VOC: 45 V

Short Circuit Current ISC: 10.23 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: -0.38 %/°C

Temperature Coefficient of Voc: -0.3 %/°C

Temperature Coefficient of Isc: 0.048 %/°C

Solar Panel Attributes

Weight: 27 kg

Cell Type: Bifacial

Cell Count: 72

Glass Thickness: unknown

Juntion Box Protection Class: IP 67

Cable Length: 300 mm

Glass Type: unknown