Gold Member Since 2013
Guangzhou Queenswing Solar Energy Co., Ltd.

Solar Panel, Solar Cell, Monocrystalline Solar Panel manufacturer / supplier in China, offering Solar Cell 20W Monocrystalline Solar Panel (QW-M20W), High Quality Y Type 4 in 1 Mc4 Solar PV Connector, Y-Type 1 to 2 Mc4 Solar Panels PV Connector and so on.

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Supplier Homepage Product Solar Panel Monocrystalline solar panel Solar Cell 20W Monocrystalline Solar Panel (QW-M20W)

Solar Cell 20W Monocrystalline Solar Panel (QW-M20W)

Purchase Qty.:
200-999 1,000+
FOB Unit Price: US $18.33 US $16.17
Purchase Qty. (Pieces) FOB Unit Price
200-999 US $18.33
1,000+ US $16.17
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Production Capacity: 20000 Units/Month
Transport Package: Paper Box / Unit
Payment Terms: T/T, Money Gram, Western Union, In Cash

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Basic Info
  • Model NO.: QW-M20W
  • Number of Cells: 36pcs
  • Condition: New
  • Material: Monocrystalline Silicon
  • Cells: Monocrystalline Silicon Photovoltaic Cell
  • Size: 645*285*18mm
  • Open - Circuit Voltage (Voc): 21.8V
  • Short - Circuit Current (Isc): 1.32A
  • Keyword: Solar Panel
  • Specification: CE, Rohs, SGS
  • HS Code: 8541402000
  • Warranty: 10 Years
  • Application: Industrial
  • Certification: ISO, CE
  • Nominal Peak Power(Pmax): 20wp
  • Weight: 2.5kg
  • Optimum Operating Voltage (Vmp): 17.37 V
  • Optimum Operating Current (Imp): 1.18A
  • Cell Efficiency: 17.8%
  • Trademark: Queenswing
  • Origin: Guagzhou, China
Product Description
Grade A solar cell 20W Monocrystalline Solar Panel(QW-M20W)

Renewable energy is energy that comes from natural sources that are almost always available, such as sunlight, wind, rain, tides, and even heat. Since creating environmentally-friendly energy solutions is crucial, the renewable energy industry has become a key business that will only increase in importance in future years and decades. Solar energy is often regarded as the most efficient renewable energy source for generating electricity.

1. High cell efficiency with quality silicon materials for long term output stability and reliability.
2. Rigorous quality control to meet highest international standards.
3. High transmittance low iron tempered glass with enhanced stiffness and impact resistance
4. Unique frame design, high mechanical strength, and easy Installation.
5. Advanced encapsulation material with multiplayer sheet lamination to provide efficient protection from the severest environmental conditions
6. Outstanding electrical performance under high temperature and low irradiance conditions

Solar cells applications:
1. Any large or small on-grid or off-grid solar power stations
2. Commercial and industrial building roof-top systems
3. Residential roof-top systems
4. Any commercial or industrial ground mount systems
5. Other industrial or commercial applications

Solar panel quality and warranty:
1. Peak power of single module in guaranteed in +-3%power tolerance.
2. Average power of modules in single order is guaranteed not less than the peak power
3. Rigorous quality control meets the highest international standard
4.5 years limited warranty on material and workmanship
5.10 years and 20 years limited warranty for minimum power output.

Technical parameters:
Electrical Characteristics
Model No.QW-SP20M-36/6
Maximum Power at STC (Pmax)20W
Optimum Operating Voltage (Vmp)17.37 V
Open - Circuit Voltage (Voc)21.8V
Optimum Operating Current (Imp)1.18A
Short - Circuit Current (Isc)1.32A
Cell Efficiency17.8%
Operating Module Temperature-40 °C to +85 °C
Maximum System Voltage1000 V DC (IEC) / 600 V DC (UL)
Diodes2 by pass
Power Tolerance-3/+3 %
STC: irradiance 1000 W/m2, module temperature 25 °C, AM=1.5; Power measurement tolerance: ± 3%
Mechanical Characteristics
Solar Cell Monocrystalline 156× 156 mm (6 inches)
No. of Cells36 (2×18)
2.8 Kgs 
Front Glass3.2 mm (0.13 inches) tempered glass
FrameAnodized aluminum alloy
Junction BoxIP65 rated
Output CablesTUV
Junction box w/o cable
ConnectorsRADOX® SOLAR integrated twist locking connectors
Temperature Characteristics
Nominal Operating Cell Temperature (NOCT)45±2 ºC
Temperature Coefficient of Pmax-0.47%/ºC
Temperature Coefficient of Voc-0.34%/ºC
Temperature Coefficient of Isc0.045%/ºC
Quality and Safety:
Product warranty:
Solar modules will last for at least 25 years.
Free from defects in material and workmanship for 5 years.
All the panels passed IEC, TUV standards.
Power warranty:
Maintain more than 90% of minimum rated power for 10 years.
Maintain more than 80% of minimum rated power for 25 years.
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