Qiqiang Solar JKM620N-78HL4-BDV
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Qiqiang Solar JKM620N-78HL4-BDV 620W N-Type TOPCon Bifacial Solar Panel
JKM620N-78HL4-BDV | N-Type TOPCon | 156 Half-Cell | Bifacial | 1500V System Voltage
Product Overview
The Qiqiang Solar JKM620N-78HL4-BDV 620W N-Type TOPCon Bifacial Solar Panel delivers exceptional energy performance for modern solar installations. This advanced monocrystalline module features 620 watts of peak power output with a remarkable 22.18% efficiency rating. Built with durable N-type TOPCon technology, it ensures superior reliability and minimal degradation over time. The bifacial design captures sunlight from both sides, significantly boosting total energy generation compared to standard panels. Its robust dual-glass construction withstands harsh environmental conditions including heavy snow loads up to 5400 Pascal. Ideal for residential, commercial, and industrial projects, this panel offers a 12-year product warranty and a 30-year linear power warranty. The positive power tolerance of 0 to +3% guarantees consistent performance across all units. With a weight of 34.6 kg and dimensions of 2465x1134x30 mm, it balances strength with manageable installation logistics.
Key Benefits
High Power Output: Generates 620 watts of peak power, maximizing energy yield per panel for faster ROI.
Bifacial Energy Gain: Captures light from both front and rear sides, increasing total output by up to 25%.
N-Type TOPCon Technology: Reduces light-induced degradation and ensures higher long-term reliability than standard panels.
Enhanced Durability: Certified to withstand 5400 Pascal snow loads and 2400 Pascal wind loads for extreme weather.
Long Warranty Coverage: Includes a 12-year product warranty and a 30-year linear power warranty guaranteeing 87.4% output.
How It Works
This solar panel operates by converting sunlight into electricity using advanced N-type monocrystalline cells with TOPCon technology. The bifacial design allows the panel to harvest photons from both the front glass and the rear side, significantly increasing energy production. When sunlight hits the cells, electrons are excited and flow through the circuit as direct current. The SMBB (Super Multi-Busbar) technology improves light trapping and current collection efficiency. Hot 2.0 technology further enhances module reliability by reducing thermal stress and degradation rates. This combination of technologies ensures stable performance even under high temperatures or low-light conditions. The dual-glass structure protects internal components from moisture and physical damage, ensuring decades of reliable operation.
Bifacial Light Capture: The rear side captures reflected light from the ground or surrounding surfaces, boosting total power output by 5% to 25%.
TOPCon Efficiency: The tunnel oxide passivation contact layer reduces electron recombination, allowing more current to flow and improving overall efficiency.
Hot 2.0 Reliability: This advanced thermal management process lowers LID and LETID effects, ensuring the panel maintains high power output over its lifespan.
Technical Specifications
| Maximum Power (Pmax) | 620 Wp |
| Module Efficiency STC | 22.18 % |
| Power Tolerance | 0 ~ +3 % |
| Voltage at Max Power (Vmpp) | 45.93 V |
| Current at Max Power (Impp) | 13.5 A |
| Open Circuit Voltage (Voc) | 55.58 V |
| Short Circuit Current (Isc) | 14.19 A |
| Temperature Coefficient of Pmax | -0.29 %/°C |
| Operating Temperature Range | -40 to 85 °C |
| Nominal Operating Cell Temp (NOCT) | 45 ± 2 °C |
| Maximum System Voltage | 1500 V |
| Series Fuse Rating | 30 A |
| Cell Type | N-type Mono-crystalline |
| Number of Cells | 156 (2 × 78) |
| Panel Dimensions (H/W/D) | 2465 × 1134 × 30 mm |
| Weight | 34.6 kg |
| Front Glass | 2.0 mm, Anti-Reflection Coating |
| Back Glass | 2.0 mm, Heat Strengthened Glass |
| Frame Type | Anodized Aluminium Alloy |
| Junction Box Protection | IP 68 Rated |
| Connector Type | MC4 |
| Snow Load Capacity | 5400 Pascal |
| Wind Load Capacity | 2400 Pascal |
Certifications & Compliance
Certifications: IEC61215 (2016), IEC61730 (2016)
Inverter Compatibility: Compatible with all major string inverters supporting 1500V systems
Environmental: ISO9001:2015, ISO14001:2015, ISO45001:2018
Warranty: 12-Year Product Warranty, 30-Year Linear Power Warranty (87.4% output), 0.42% Annual Degradation
Documentation
Product Datasheet (PDF)● Available | Contact us for lead time and pricing
| SKU | PES-SPS-SOL-14879 |
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| Manufacturer | PES Supply |
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