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Total Inventory as of Wednesday, June 24, 2026: 7,978 (Minimum order: 4 Panels)
Local warehouse pickup available, or discounted shipping may apply to these warehouse locations: Arlington, TX / Fontana, CA / Las Vegas, NV / Millstone, NJ / Orlando, FL / Sacramento, CA / Tampa, FL. Contact us for a quote or more information.
The JA Solar Deep Blue 4.0 JAM54D41 MB is a 440W n-type double glass bifacial module featuring 16BB MBB half-cell technology. With up to 26% cell conversion efficiency and 80% bifaciality, it delivers additional power from the rear side. The double glass construction provides enhanced durability and resistance to PID, making it ideal for residential and commercial off-grid or grid-tied installations where long-term reliability and maximum energy yield are critical. Backed by a 30-year linear power warranty.
Key Features & Benefits
440W Maximum Power (Front Side): High power output for maximum energy harvest.
n-Type Double Glass Bifacial Design: Double glass construction with 80% ±5% bifaciality provides additional rear-side power gain.
16BB MBB Half-Cell Technology: 16 busbars and half-cell configuration improve current collection and reduce resistive losses.
Up to 26% Cell Conversion Efficiency: High-efficiency n-type cells for superior performance.
Better Temperature Coefficient (-0.290%/°C): Outperforms conventional panels in high-temperature conditions.
Very Low LID (Light Induced Degradation): n-type technology eliminates boron-oxygen defects found in p-type cells.
Better Low Irradiance Response: Improved performance during cloudy or early morning/late afternoon conditions.
Low First-Year Degradation: Only 1% degradation in the first year.
0.4% Annual Degradation Over 30 Years: Industry-leading linear performance warranty.
High Mechanical Load Rating: Front side 5400Pa, back side 2400Pa.
1500V Maximum System Voltage: Compatible with high-voltage string inverters for longer string lengths.
IP68 Junction Box: High waterproof level with 3 diodes.
Class II Safety and UL Type 38 Fire Rating: Meets safety standards.
30-Year Product Warranty: Industry-leading 30-year product warranty.
30-Year Linear Power Output Warranty: Ensures long-term performance.
Technical Specifications (STC)
| Specification | Detail |
|---|---|
| Manufacturer | JA Solar |
| Model | JAM54D41-440/MB |
| Maximum Power (Pmax) | 440W |
| Optimum Operating Voltage (Vmp) | 33.37V |
| Optimum Operating Current (Imp) | 13.18A |
| Open Circuit Voltage (Voc) | 39.38V |
| Short Circuit Current (Isc) | 13.85A |
| Module Efficiency | 22.5% |
| Power Tolerance | ±2% |
| Maximum System Voltage | 1500V DC |
| Maximum Series Fuse Rating | 30A |
| Bifaciality | 80% ±5% |
*STC: Irradiance 1000 W/m², Cell Temperature 25°C, AM 1.5G*
Technical Specifications (NMOT)
| Specification | Detail |
|---|---|
| Nominal Module Operating Temperature (NOCT) | 45 ± 2°C |
*NMOT: Irradiance 800 W/m², Ambient Temperature 20°C, Wind Speed 1 m/s*
Electrical Characteristics with 10% Rear Irradiation Ratio
| Specification | Detail |
|---|---|
| Rated Max Power (Pmax) | 475W |
| Open Circuit Voltage (Voc) | 39.38V |
| Max Power Voltage (Vmp) | 33.37V |
| Short Circuit Current (Isc) | 14.96A |
| Max Power Current (Imp) | 14.24A |
Temperature Characteristics
| Specification | Value |
|---|---|
| Temperature Coefficient of Pmax | -0.290% / °C |
| Temperature Coefficient of Voc | -0.250% / °C |
| Temperature Coefficient of Isc | +0.045% / °C |
Mechanical Specifications
| Specification | Detail |
|---|---|
| Dimensions (L x W x H) | 1722 x 1134 x 30 mm (67.8 x 44.6 x 1.2 in) |
| Weight | 21.5 kg (47.4 lbs) |
| Cell Type | Mono n-type |
| Number of Cells | 108 (6 x 18) |
| Front Glass / Back Glass | 1.6 mm / 1.6 mm |
| Frame | Anodized aluminum alloy |
| Junction Box | IP68, 3 diodes |
| Connectors | QC 4.10-351 / MC4-Evo2 |
| Cable Section | 4 mm² (IEC) / 12 AWG (UL) |
| Cable Length (Portrait) | 300mm (+), 400mm (-) |
| Cable Length (Landscape) | 1200mm (+), 1200mm (-) |
Load Ratings
| Specification | Value |
|---|---|
| Max Static Load (Front) | 5400 Pa (112 lb/ft²) |
| Max Static Load (Back) | 2400 Pa (50 lb/ft²) |
| Fire Performance | UL Type 38 / Class C |
Warranty Information
| Parameter | Value |
|---|---|
| Product Warranty | 30 years |
| Performance Warranty | 30 years linear |
| Year 1 Degradation | 1.0% |
| Annual Degradation (Years 2-30) | 0.4% |
| Performance at Year 30 | 87.4% |
Certifications & Compliance
| Standard | Description |
|---|---|
| IEC 61215 | Performance |
| IEC 61730 | Safety |
| UL 61215 | US performance standard |
| UL 61730 | US safety standard |
| ISO 9001:2015 | Quality management |
| ISO 14001:2015 | Environmental management |
| ISO 45001:2018 | Occupational health and safety |
| IEC 62941:2019 | PV module quality system |
Product Documents
Full Datasheet: Download PDF