Compare Kootatu Tech MM 220 vs Changtian New Energy Engineering CH-HS255M

Warranty Terms

Output Warranty:

10 Years of 90% Output Power, 20 Years of 80% Output Power

Materials Warranty: unknown

Panel Performance

Rated Power: 220 Wp

Efficiency: 13.26 %

Voltage at Maximum Power VMPP: 28.71 V

Current at Maximum Power IMPP: 7.61 A

Open Circuit Voltage VOC: 37.12 V

Short Circuit Current ISC: 8.25 A

Power Tolerance Positive: + 5 %

Maximum System Voltage: 1000 V

Solar Panels Thermal Ranges

Operating Temperature Range: -40~85 °C

Temperature Coefficient of Pmax: -0.403 %/°C

Temperature Coefficient of Voc: -0.288 %/°C

Temperature Coefficient of Isc: 0.086 %/°C

Solar Panel Attributes

Weight: 21 kg

Cell Type: Monocrystalline

Cell Count: 60

Glass Thickness: 3.2 mm

Juntion Box Protection Class: IP 65

Cable Length: unknown

Glass Type: Tempered, Low Iron

Warranty Terms

Output Warranty:

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

Materials Warranty: 10 Years

Panel Performance

Rated Power: 255 Wp

Efficiency: 15.58 %

Voltage at Maximum Power VMPP: 30.8 V

Current at Maximum Power IMPP: 8.28 A

Open Circuit Voltage VOC: 37.8 V

Short Circuit Current ISC: 8.96 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: -0.29 %/°C

Temperature Coefficient of Isc: 0.04 %/°C

Solar Panel Attributes

Weight: 19 kg

Cell Type: Monocrystalline

Cell Count: 60

Glass Thickness: 3.2 mm

Juntion Box Protection Class: IP 67

Cable Length: 900 mm

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