JA Solar JAM54D41 445/LB Full Black Solar Panel Bifacial

PV Module JA Solar JAM54D41 445/LB Full Black — N-Type Bifacial Double-Glass Solar Panel

High-efficiency bifacial PV module built with N-type cells and double-glass construction, delivering strong energy yield, improved low-irradiance response, and robust durability for commercial rooftops, ground-mounted arrays, and utility-scale solar installations.

Applications and use cases

This JA Solar JAM54D41 445/LB Full Black module is designed for demanding photovoltaic deployments where space efficiency and reliability matter. The bifacial, double-glass design captures light from both sides to boost energy output, while a low LID profile and strong temperature performance contribute to higher levelized cost of energy (LCOE) in real-world conditions. It is suitable for commercial rooftops, ground-mounted systems, and large-scale solar farms, and it supports high-voltage installations up to 1500 V for streamlined string configurations.

• N-type bifacial double-glass mono module with a full-black aesthetic
• 108 cells (6×18) for high power density
• Power variants in the 430–455 W range, with the JAM54D41-445/LB offering about 445 W
• Efficient performance under low irradiance and elevated temperatures
• IP68 junction box with three bypass diodes for reliable field operation
• Designed for 1500 V DC systems and standard mounting hardware
• 12-year product warranty and 30-year linear power output warranty
• Panel dimensions of 1,762 mm × 1,134 mm × 30 mm and a weight around 22 kg

Key electrical and performance parameters

In STC, the 445/LB variant provides a nominal power near 445 W with a open-circuit voltage around 39.1 V and a maximum-power voltage around 32.6–32.8 V. The short-circuit current is approximately 14.4 A, and the maximum-power current is about 13.6–13.7 A, yielding an efficiency in the low 22% range depending on the exact configuration. Temperature coefficients indicate stable performance across operating temperatures, with Pmax at -0.30 %/°C, Voc at -0.26 %/°C, and Isc at +0.046 %/°C. The module is built on 108 N-type cells, with double-glass construction (3.2 mm glass) to enhance durability and reduce potential light-induced degradation. A maximum system voltage of 1500 V and a 30 A series fuse are specified for safe, scalable installations. The panel uses MC4-compatible connectors, a 4 mm² cross-section cable, and a standard 1200 mm lead length for flexible wiring.

• Pmax: about 445 W (445/LB variant) at STC
• Voc ≈ 39.1 V; Vmp ≈ 32.6–32.8 V; Isc ≈ 14.4 A; Imp ≈ 13.6–13.7 A
• Panel efficiency ≈ 22.3% (variant dependent)
• Temperature coefficients: Pmax -0.30 %/°C; Voc -0.26 %/°C; Isc +0.046 %/°C
• Max system voltage: 1500 V; Series fuse rating: 30 A
• Cell Type: N-type; Cell Count: 108; Glass: Double (3.2 mm)
• Weight and size: ~22 kg; 1,762 mm × 1,134 mm × 30 mm
• Efficiency and reliability features: bifacial output, low LID, IP68 junction box

Mechanical design and installation

The JAM54D41 445/LB Full Black module combines rugged double-glass construction with a compact, high-density form factor designed for long service life in varied climates. It employs an IP68-rated junction box and three bypass diodes to ensure reliability in shade and partial-light conditions, with MC4-compatible connectors and a 1200 mm cable length to simplify string wiring. The full-black appearance, 1762 mm × 1134 mm footprint, and lightweight 22 kg weight facilitate straightforward mounting on common commercial racking systems, whether installed in portrait or landscape orientation. This design supports durable outdoor operation in a wide temperature range and is ready for integration into modern, high-voltage PV installations up to 1500 V, offering a visually uniform, low-maintenance solution for solar projects.

• Double-glass construction with 3.2 mm front/back glass for durability
• Dimensions: 1,762 mm × 1,134 mm × 30 mm; weight ≈ 22 kg
• IP68-rated junction box and 3 bypass diodes for reliability
• 4 mm² cables, 1200 mm length; MC4-compatible connectors (QC4.10-351 / MC4-EVO2A)
• Compatible with standard mounting hardware and up to 1500 V DC systems