Compare ILB Helios Group NA240WM60-156/J vs Atsun ATM-20(18W)

Warranty Terms

Output Warranty:

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

Materials Warranty: 5 Years

Panel Performance

Rated Power: 240 Wp

Efficiency: 14.66 %

Voltage at Maximum Power VMPP: 30.2 V

Current at Maximum Power IMPP: 7.94 A

Open Circuit Voltage VOC: 37.4 V

Short Circuit Current ISC: 8.58 A

Power Tolerance Positive: + 3 %

Maximum System Voltage: 1000 V

Solar Panels Thermal Ranges

Operating Temperature Range: -40~85 °C

Temperature Coefficient of Pmax: -0.42 %/°C

Temperature Coefficient of Voc: -0.34 %/°C

Temperature Coefficient of Isc: 0.06 %/°C

Solar Panel Attributes

Weight: 19.5 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, Low Iron

Warranty Terms

Output Warranty:

unknown

Materials Warranty: unknown

Panel Performance

Rated Power: 18 Wp

Efficiency: 10.3 %

Voltage at Maximum Power VMPP: 17.5 V

Current at Maximum Power IMPP: 1.03 A

Open Circuit Voltage VOC: 21.5 V

Short Circuit Current ISC: 1.1 A

Power Tolerance Positive: + 3 %

Maximum System Voltage: 1000 V

Solar Panels Thermal Ranges

Operating Temperature Range: -40~85 °C

Temperature Coefficient of Pmax: -0.521 %/°C

Temperature Coefficient of Voc: -0.395 %/°C

Temperature Coefficient of Isc: 0.057 %/°C

Solar Panel Attributes

Weight: 2.4 kg

Cell Type: Monocrystalline

Cell Count: 36

Glass Thickness: unknown

Juntion Box Protection Class: unknown

Cable Length: unknown

Glass Type: unknown