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.
What is the advantage of JA Solar N-Type cells?
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.
How much extra power can the bifacial gain provide?
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.
Does this panel come with a silver or black frame?
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.