620W JA Solar N-Type TOPCon Bifacial Double-Glass
Overview
Maximize your total power generation with the high-output JA Solar 620W Bifacial Solar Panel. Built using cutting-edge N-Type TOPCon cell technology, this commercial-grade module achieves an impressive efficiency of up to 23.0%. Its dual-sided design generates electricity from direct overhead sunlight while simultaneously harvesting reflected light (albedo) off the surface beneath, significantly boosting overall energy yields.
Designed to withstand rigorous outdoor elements, the panel features a robust double-glass architecture housed in a corrosion-resistant anodized aluminum frame. With superior low-light performance, minimized yearly degradation, and full PID resistance, the 620W module is an outstanding choice for residential arrays, commercial rooftops, and utility-scale solar projects.
Key Highlights
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High-Yield N-Type TOPCon Tech: Reaches up to 23.0% module efficiency with exceptional power density and near-zero initial light-induced degradation.
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Dual-Sided Energy Capture: Bifacial double-glass layout absorbs ambient light reflected from ground surfaces, increasing overall system kWh generation.
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Dual 2.0mm Tempered Glass: Rugged double-glass construction guards against moisture, micro-cracking, and long-term environmental wear.
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All-Weather Structural Strength: Rated to resist heavy static pressure, enduring up to 5400 Pa front snow load and 2400 Pa rear wind load.
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High-Voltage Compatibility: Engineered for 1500V DC system voltages with a 30A series fuse limit for efficient, flexible string setups.
Technical Specifications
Primary Electrical Data (STC)
| Parameter | Specification |
| Max Power Output (Pmax) | 620 W |
| Module Efficiency | Up to 23.0% |
| Max Power Voltage (Vmp) | 45.30 V |
| Max Power Current (Imp) | 13.69 A |
| Open Circuit Voltage (Voc) | 53.80 V |
| Short Circuit Current (Isc) | 14.52 A |
| Output Tolerance | 0 to +5 W |
| Max System Voltage | 1500V DC |
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Max Series Fuse Rating |
30 A |
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Dimensions |
2382 x 1134 x 30mm |
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Weight |
33.1kg |
Mechanical & Physical Specs
| Feature | Detail |
| Cell Tech / Type | Monocrystalline N-Type TOPCon (Bifacial) |
| Glass Structure | Dual 2.0mm + 2.0mm Tempered Glass |
| Frame Material | Anodized Aluminium Alloy |
| Junction Box | IP68 Weatherproof Rating |
| Connector Type | MC4 Compatible |
| Operating Thermal Limits | -4'C to +85'C |
| Mechanical Load Rating | Front 5400 Pa / Rear 2400 Pa |