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Compare Hengda Electronic HDM72-330 vs Dokio Technology DSP-255M

Model: HDM72-330

Series: HDM72 320-340W

Manufacturer: Hengda Electronic

Rated Power: 330 Wp

EnergyPal Hengda Electronic  Solar Panels HDM72 320-340W HDM72-330
Warranty Terms

Output Warranty:

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

Materials Warranty: 12 Years


Panel Performance

Rated Power: 330 Wp

Efficiency: 17.02 %

Voltage at Maximum Power VMPP: 37.6 V

Current at Maximum Power IMPP: 8.78 A

Open Circuit Voltage VOC: 46.1 V

Short Circuit Current ISC: 9.26 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: -0.39 %/°C

Temperature Coefficient of Voc: -0.29 %/°C

Temperature Coefficient of Isc: 0.05 %/°C


Solar Panel Attributes

Weight: 22.5 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, High Transmittance, Low Iron

Model: DSP-255M

Series: DSP-240M-255M

Manufacturer: Dokio Technology

Rated Power: 255 Wp

EnergyPal Dokio Technology  Solar Panels DSP-240M-255M DSP-255M
Warranty Terms

Output Warranty:

25 Years of 80% Output Power

Materials Warranty: 5 Years


Panel Performance

Rated Power: 255 Wp

Efficiency:

Voltage at Maximum Power VMPP: 31 V

Current at Maximum Power IMPP: 8.23 A

Open Circuit Voltage VOC: 38.75 V

Short Circuit Current ISC: 8.53 A

Power Tolerance Positive: + 5 %

Maximum System Voltage: 1000 V


Solar Panels Thermal Ranges

Operating Temperature Range: -40~85 °C

Temperature Coefficient of Pmax: -0.42 %/°C

Temperature Coefficient of Voc: -0.34 %/°C

Temperature Coefficient of Isc: 0.06 %/°C


Solar Panel Attributes

Weight: 20 kg

Cell Type: Monocrystalline

Cell Count: 60

Glass Thickness: 3.2 mm

Juntion Box Protection Class: IP 65

Cable Length: 900 mm

Glass Type: Tempered, High Transmittance, Low Iron