Yingli 620W Bifacial Solar Panel

Buy Yingli 620W Bifacial Solar Panel in Pakistan

The Yingli 620W Bifacial Solar Panel is a high-efficiency photovoltaic module developed for utility-scale, commercial and industrial solar installations. Powered by advanced N-Type TOPCon cell technology, it delivers a rated front-side output of 620 watts with module efficiency of up to 23.0%.

As part of the Yingli PANDA 3.0 Pro 2 series, this module combines high energy yield, excellent bifacial performance and robust dual-glass construction. Its positive power tolerance of 0 to +5W supports reliable rated power under standard test conditions.

Advanced N-Type TOPCon Technology

The Yingli 620W solar panel uses N-Type monocrystalline silicon cells arranged in a 6 × 22 cell configuration. N-Type TOPCon technology provides high conversion efficiency, reduced temperature-related losses and dependable long-term energy production.

The module features a low power temperature coefficient of -0.29% per °C, helping it maintain better performance as panel operating temperatures increase. This makes it suitable for large solar projects operating in Pakistan’s hot climatic conditions.

Up to 687W Bifacial Power Output

The bifacial dual-glass design enables the Yingli 620W panel to generate electricity from sunlight received on both the front and rear surfaces. Under the manufacturer’s BNPI bifacial test conditions, the module can deliver power output of up to 687W.

Its bifacial performance includes:

• Front-side rated power output of 620W
• Bifacial power output of up to 687W
• Bifaciality coefficient of 80% ±5%
• Bifacial operating current of 16.50A
• Bifacial short-circuit current of 17.61A

Actual rear-side power gain depends on ground reflectivity, mounting height, tilt angle, row spacing and overall system design.

High-Efficiency Electrical Performance

At Standard Test Conditions, the Yingli 620W Bifacial Solar Panel delivers:

• Maximum power voltage of 41.65V
• Maximum power current of 14.89A
• Open-circuit voltage of 49.61V
• Short-circuit current of 15.89A

The panel supports a maximum system voltage of 1500V DC and a maximum series fuse rating of 30A, making it suitable for professionally designed high-voltage solar arrays.

Reliable Real-World Performance

Under Nominal Operating Cell Temperature conditions, the Yingli 620W module produces a power output of 472W. Its NOCT maximum power voltage is 39.73V, while the maximum operating current is 11.87A.

These NOCT figures provide a useful reference for expected module behaviour under operating conditions that are closer to practical outdoor environments than standard laboratory testing.

Durable Dual-Glass Construction

The Yingli 620W solar panel features 2.0mm front glass and 2.0mm rear glass, supported by a strong anodized aluminium alloy frame. Its junction box contains three bypass diodes and carries an ingress protection rating of at least IP68.

The panel is designed to withstand:

• Front static load of up to 5400 Pa
• Rear static load of up to 2400 Pa
• Hailstones measuring 25mm at a velocity of 23m/s
• Operating temperatures from -40°C to +85°C

The module also carries a Class A fire-resistance rating, supporting safe use in properly designed rooftop and ground-mounted solar systems.

Built for Utility-Scale Solar Projects

The Yingli PANDA 3.0 Pro 2 series is designed around outstanding bifaciality, superior energy yield and a robust frame. With a rated power output of 620W and efficiency of 23.0%, the module can generate substantial electricity from the available installation area.

The manufacturer identifies this module series as ideal for utility projects, while its high wattage and durable construction also make it suitable for large commercial and industrial solar systems.

Long-Term Manufacturer Warranty

The Yingli 620W Bifacial Solar Panel is supported by:

• 12-year product warranty
• 30-year power warranty
• 0.40% annual power degradation
• Approximately 87.4% guaranteed output after 30 years

The warranty chart on page 1 of the datasheet shows the Yingli PANDA linear power warranty reaching 87.4% at the end of year 30.

International Certifications

The Yingli 620W Bifacial Solar Panel is manufactured according to recognised international quality, environmental, safety and manufacturing standards, including:

• IEC 61215
• IEC 61730
• CE
• ISO 9001
• ISO 14001
• IEC 62941
• ISO 45001
• SA8000 Standard