JA Solar 625W Bifacial Panel (Double Glass)
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JA Solar 625W N-Type Bifacial Double-Glass Solar Panel
Model: JAM66D45-625/LB
Brand: JA Solar
Technology: DeepBlue 4.0 Pro
Cell Technology: Bycium+ N-Type TOPCon
Module Type: N-Type Bifacial Monocrystalline Double-Glass Solar Panel
Rated Power: 625 W
Module Efficiency: 23.1%
⚡ Key Features
High 625W Power Output
Delivers 625W of rated power with module efficiency of up to 23.1%, providing excellent energy generation and efficient use of available installation space.
Advanced N-Type Cell Technology
Built using n-type Bycium+ cell technology with advanced 16-busbar (16BB) half-cell architecture, delivering improved power generation, low-irradiance performance and long-term reliability.
Bifacial Power Generation
The double-glass bifacial design allows the rear side of the module to capture reflected and scattered sunlight, increasing total energy generation where suitable installation conditions provide rear-side irradiance.
Under a 10% rear irradiation ratio, the module can deliver up to 675W.
Durable Double-Glass Construction
The module uses 2.0mm semi-tempered glass on both the front and rear, providing strong mechanical protection and improved resistance to environmental conditions.
High Mechanical Load Resistance
Designed to withstand demanding installation environments with a 5400 Pa front static load and 2400 Pa rear static load.
Excellent Temperature Performance
With a -0.290%/°C power temperature coefficient, the module is designed to maintain strong power output under elevated operating temperatures.
Long-Term Performance
JA Solar provides a 12-year product warranty and a 30-year linear power warranty, with maximum first-year degradation of 1% and subsequent annual degradation of 0.4%.
The module is guaranteed to retain at least 87.4% of its original power output after 30 years.
📐 Electrical Specifications
Testing Conditions: STC – Irradiance 1000 W/m², Cell Temperature 25°C, AM1.5G
| Specification | Value |
|---|---|
| Model | JAM66D45-625/LB |
| Rated Maximum Power (Pmax) | 625 W |
| Open Circuit Voltage (Voc) | 48.70 V |
| Maximum Power Voltage (Vmp) | 40.45 V |
| Short Circuit Current (Isc) | 16.15 A |
| Maximum Power Current (Imp) | 15.45 A |
| Module Efficiency | 23.1% |
| Power Tolerance | 0 to +3% |
☀️ Bifacial Electrical Characteristics
Rear Irradiation Ratio: 10%
| Specification | Value |
|---|---|
| Rated Maximum Power (Pmax) | 675 W |
| Open Circuit Voltage (Voc) | 48.70 V |
| Maximum Power Voltage (Vmp) | 40.45 V |
| Short Circuit Current (Isc) | 17.44 A |
| Maximum Power Current (Imp) | 16.69 A |
| Bifaciality Factor | 80% ± 10% |
The additional rear-side power contribution depends on installation conditions, including ground reflectivity, mounting height, row spacing and surrounding surfaces.
🔧 Mechanical Specifications
| Specification | Details |
|---|---|
| Cell Type | Mono N-Type |
| Cell Configuration | 132 cells (6 × 22) |
| Dimensions | 2382 × 1134 × 30 mm |
| Dimension Tolerance | ±2 mm length/width, ±1 mm frame |
| Weight | 33.1 kg |
| Front Glass | 2.0 mm semi-tempered glass |
| Rear Glass | 2.0 mm semi-tempered glass |
| Frame | Black anodized aluminum alloy |
| Junction Box | IP68, 3 bypass diodes |
| Connectors | QC 4.10-351 / MC4-EVO2A |
| Cable Cross-Section | 4 mm² IEC / 12 AWG UL |
| Cable Length – Portrait | 300 mm (+) / 400 mm (-) |
| Cable Length – Landscape | 1500 mm (+) / 1500 mm (-) |
| Packaging | 36 pcs/pallet |
| Container Capacity | 720 pcs/40HQ |
🌡️ Thermal & Operating Parameters
| Specification | Value |
|---|---|
| Temperature Coefficient of Pmax | -0.290% / °C |
| Temperature Coefficient of Voc | -0.250% / °C |
| Temperature Coefficient of Isc | +0.045% / °C |
| Nominal Operating Cell Temperature (NOCT) | 45 ± 2°C |
| Operating Temperature | -40°C to +85°C |
| Maximum System Voltage | 1500 V DC |
| Maximum Series Fuse Rating | 35 A |
| Bifaciality Factor | 80% ± 10% |
| Front Static Load | 5400 Pa |
| Rear Static Load | 2400 Pa |
🛡️ Certifications & Safety
The JAM66D45-625/LB is manufactured to international photovoltaic and quality standards, including:
- IEC 61215
- IEC 61730
- UL 61215
- UL 61730
- ISO 9001
- ISO 14001
- ISO 45001
- IEC 62941
Safety Class: Class II
Fire Rating: UL Type 29 / Class C
🏡 Ideal Applications
- Residential rooftop solar systems
- Commercial and industrial solar installations
- Ground-mounted solar systems
- Carports and solar structures
- Bifacial solar installations
- Large-scale photovoltaic projects
- Systems requiring high power output within limited installation space
🏷️ Quality & Support
The JA Solar JAM66D45-625/LB 625W N-Type Bifacial Double-Glass Solar Panel combines DeepBlue 4.0 Pro technology, advanced Bycium+ n-type cells and 16BB half-cell architecture to deliver high power output, excellent efficiency and reliable long-term performance.
Its bifacial double-glass construction allows additional energy generation from rear-side irradiance, while the robust 1500V system design, high mechanical load ratings and IP68 junction box make it suitable for demanding residential, commercial and utility-scale solar installations.
Backed by a 12-year product warranty and 30-year linear power warranty, the module is designed to provide dependable solar generation over decades of operation.
- Spec Sheet
We Don’t Just Beat Quotes — We Build Better Systems.
Our certified installers design each PV setup for maximum performance and long-term reliability. Every installation is backed by full warranty support and genuine spare parts, ensuring your investment delivers power — and peace of mind — for years to come.