JA Solar 605W Bifacial Double Glass Solar Panel - JAM72D40 LB
The JA Solar JAM72D40 LB 605W solar panel is a high-output bifacial double glass module designed for commercial, agricultural, off-grid and large residential installations. Built with advanced n-type cell technology, this panel offers strong efficiency, low annual degradation and the potential for additional rear-side generation where installation conditions allow reflected light to reach the back of the module. It is a robust, utility-grade panel suited to demanding environments and projects where long-term yield matters.
Features
High 605W rated output
With a rated maximum power of 605W, this module is well suited to installations where maximising output per panel is important. It helps reduce the number of panels needed for a given system size and is ideal for larger roof and ground-mounted arrays.
Bifacial energy generation
The bifacial double glass design allows the module to generate power from both the front and rear sides. Under suitable installation conditions, rear-side gain can further improve overall energy yield, making it particularly attractive for ground-mounted systems and reflective surfaces. The datasheet includes performance figures based on 10% rear-side irradiation.
Advanced n-type technology
The JAM72D40 LB series uses n-type cells with MBB half-cell technology. JA Solar highlights benefits including lower LID, better low-light response and improved temperature behaviour, helping support strong real-world performance across a range of conditions. :contentReference[oaicite:3]{index=3}
Excellent efficiency
This 605W version achieves a module efficiency of 22.9%, giving high output from a panel measuring 2333 x 1134 x 30mm. This makes it a strong choice for customers seeking powerful modern panels from a widely recognised manufacturer.
Durable double glass construction
With 2.0mm front glass and 2.0mm rear glass, this module is designed for durability and long-term reliability. Double glass construction can offer advantages in environmental resistance and long service life, especially in more exposed installations. :contentReference[oaicite:5]{index=5}
Strong warranty support
JA Solar specifies a 12-year product warranty and a 30-year linear power output warranty for this series, reflecting its positioning as a premium long-life module.
Designed for demanding installations
The panel is rated for a maximum static load of 5400Pa on the front and 2400Pa on the rear, supporting use in challenging weather conditions. It also has a maximum system voltage of 1500V DC and an operating temperature range of -40°C to +85°C. :contentReference[oaicite:7]{index=7}
Practical applications
This module is a good fit for commercial rooftops, agricultural buildings, ground-mounted arrays, larger residential systems and off-grid energy projects where panel count, durability and long-term generation are all important. Its size and weight mean it is generally better suited to installations with adequate structure and handling arrangements. Dimensions are 2333 x 1134 x 30mm and weight is 32.5kg. :contentReference[oaicite:8]{index=8}
Technical Specifications
| Manufacturer | JA Solar |
|---|---|
| Model | JAM72D40-605/LB |
| Rated Maximum Power (Pmax) | 605W |
| Module Efficiency | 22.9% |
| Open Circuit Voltage (Voc) | 52.60V |
| Maximum Power Voltage (Vmp) | 43.94V |
| Short Circuit Current (Isc) | 14.53A |
| Maximum Power Current (Imp) | 13.77A |
| Power Tolerance | 0 to +3% |
| Cell Type | Mono, n-type bifacial |
| Number of Cells | 144 (6 x 24) |
| Dimensions | 2333 x 1134 x 30mm |
| Weight | 32.5kg |
| Front / Back Glass | 2.0mm / 2.0mm |
| Connector | QC 4.10-351 / MC4-EVO2A |
| Cable Length | Portrait: 300mm (+) / 400mm (-) Landscape: 1400mm (+) / 1400mm (-) |
| Maximum System Voltage | 1500V DC |
| Operating Temperature | -40°C to +85°C |
| Maximum Series Fuse Rating | 30A |
| Maximum Static Load, Front | 5400Pa |
| Maximum Static Load, Rear | 2400Pa |
| NOCT | 45 ±2°C |
| Bifaciality | 80% ±5% |
| Product Warranty | 12 years |
| Linear Power Output Warranty | 30 years |
All technical specifications above are taken from the JA Solar datasheet for the JAM72D40 LB series and the 605W variant. :contentReference[oaicite:9]{index=9}
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