Description
Product Description
The JA Solar 620W (JAM66D45-620/LB) represents the next generation of solar efficiency. By utilizing Bycium+ N-type cells, this module significantly reduces Light-Induced Degradation (LID) and offers a better temperature coefficient than standard P-type panels, ensuring consistent power output even in hot climates.
Its bifacial double-glass construction replaces the traditional backsheet with heat-strengthened glass, allowing the panel to harvest energy from reflected light on the rear side. With a bifaciality rate of up to 80%, users can achieve substantial energy gains when installed on reflective surfaces like gravel, white membranes, or sand. Encased in a 30mm anodized silver frame, it combines structural durability with a professional, clean aesthetic.
Technical Specifications
| Feature | Specification |
| Model | JAM66D45-620/LB (DeepBlue 4.0 Pro) |
| Maximum Power (Pmax) | 620W |
| Module Efficiency | 23.0% |
| Cell Type | N-type Mono-crystalline (132 cells) |
| Dimensions | 2382 × 1134 × 30 mm |
| Weight | 33.1 kg |
| Glass | 2.0mm Front & 2.0mm Rear (Heat-strengthened) |
| Bifaciality | 80% ± 10% |
| Temperature Coeff. (Pmax) | -0.29% / °C |
| Connector Type | MC4-EVO2 / QC 4.10-351 |
| Warranty | 12-Year Product / 30-Year Linear Power |
Value Driven Summary
-
Industry-Leading Efficiency: Reaching 23.0% efficiency, these panels maximize energy production per square meter, reducing the total footprint of your solar array.
-
Superior Lifespan: The N-type technology ensures a lower annual degradation (only 0.4% after the first year), meaning your panels stay more productive for the full 30-year warranty period.
-
Dual-Sided Harvesting: Capture up to 25% additional power from rear-side generation, making it the ideal choice for ground-mounts or flat-roof systems.
-
Extreme Weather Resistance: Certified to handle heavy snow loads of 5400 Pa and wind loads of 2400 Pa, providing peace of mind in volatile environments.
JA Solar’s N-type Bycium+ cells offer lower Light-Induced Degradation (LID) and a better temperature coefficient compared to traditional P-type cells, leading to higher energy yields over the system’s lifetime.
While the front side is rated at 620W, the bifacial design can provide an additional 5% to 25% energy gain depending on the reflectivity (albedo) of the surface beneath the panels.
This specific model features a high-quality 30mm anodized silver aluminum frame, providing excellent structural integrity and compatibility with most standard mounting systems.
Reviews
There are no reviews yet.