JA Solar Module Specifications
Model Number | JAM72D30-545/MB |
Maximum Power (Pmax) | 545 W |
PTC Rating | 511.6 W |
Module Efficiency | 21.1% |
Open Circuit Voltage (Voc) | 49.75V |
Maximum Power Voltage (Vmp) | 41.80V |
Short Circuit Current (Isc) | 13.93A |
Weight | 70.1 lbs |
Length | 89.69 in |
Width | 44.65 in |
Height | 1.38 in |
Cell Type | Bifacial Mono PERCIUM |
Operating Temperature | -40°C ~ +85°C |

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JA Solar JAM72D30-545/MB 545W Bifacial Solar Panel
SKU JA-SOLAR-JAM72D30-545W-PANEL
JAM72D30-545/MB 545W Bifacial Module
The JA Solar JAM72D30-545/MB is a high-performance 545W bifacial solar panel featuring advanced 11BB PERCIUM cell technology in a double-glass configuration. This module captures light from both front and rear sides, converting incident light from all angles into electricity for improved output power and enhanced performance in various installation environments.
The double glass construction offers superior durability and weatherproofing compared to traditional backsheet modules, with a robust 30-year output warranty and exceptionally low 0.45% annual degradation rate. With 144 half-cut monocrystalline cells and a module efficiency of 21.1%, the JAM72D30-545/MB provides an optimal balance of power density, reliability, and long-term performance for commercial and utility-scale installations.
JAM72D30-545/MB Module Features
- 70%±10% Bifaciality Factor: Captures sunlight from both front and rear sides, increasing energy yield by up to 30% compared to standard modules in optimal installation conditions with reflective surfaces.
- Enhanced Durability and Lifespan: Features 2.0mm front and rear glass layers that provide superior protection against harsh weather conditions, mechanical stress, and potential induced degradation (PID).
- -0.350%/°C Power Temperature Coefficient: Maintains higher performance in hot conditions with minimal power loss as temperature rises, resulting in better real-world energy yields in warm climates.
- 30-Year Linear Power Warranty: Backed by an industry-leading 12-year product warranty and 30-year power output warranty with only 0.45% annual degradation, ensuring 87.4% of original output after 30 years.
- 545W Output with 21.1% Efficiency: Maximizes power generation per square meter, reducing BOS costs and improving overall system economics for large-scale installations.
JAM72D30-545/MB Module Warranty
JA Solar provides a 12-year product warranty covering materials and workmanship defects, plus a 30-year linear power output warranty. The power warranty guarantees that module output will be no less than 83.1% of nominal power after 25 years, with only 2.5% degradation in the first year and 0.6% annual degradation thereafter.

JAM72D30-545/MB 545W Solar Panel Review
The bifacial technology in these modules deliver a measurable advantage in real-world applications, with performance data showing energy boosts of 10-25% depending on installation conditions and ground reflectivity. The double-glass construction proves particularly valuable in coastal and high-humidity environments where traditional backsheet modules might experience accelerated degradation. The 30-year warranty period aligns well with the financial models of institutional investors and commercial property owners. When integrated with compatible trackers and inverters, the JAM72D30 series delivers exceptional ROI and energy production reliability, positioning it as a premium choice in today's competitive solar market.

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