Solar panel from JA Solar JAM54D41-445/LB (TS) 445W n-type TOPCon

JA Solar Deep Blue 4.0 Pro JAM54D41-445/LB Solar Module 445 Watt Full Black n-type TOPCon Bifacial Glass-Glass 25 Years Product Warranty

The JA Solar JAM54D41-445/LB is a 445 W bifacial glass-glass module with n-type TOPCon half-cell technology and 22.3% efficiency. With its robust design, IEC certifications, and 25/30-year warranties, it ensures maximum reliability and yield for long-term PV projects.

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Performance data

Nominal Power	445 W
Cell type	n-type TOPCon
Number of cells	108
Cell Format	n/a
Module efficiency	22,27 %
Power tolerance	0 - 5 watt
Temp. Coeff. of P(max)	-0,30 %/°C
System voltage	1500 V

Packing

Pieces per pallet	36
Pieces per 40	936

Measurements

Length	1762 mm
Width	1134 mm
Frame	30 mm
Weight	22.0 kg

Other features

Frame/Backsheet	black/black
Bifacial	Yes
Module construction	Glass/glass
Cable length + / -	1200 mm / 1200 mm
Connector Type	Stäubli MC4
Snow load	5.400 Pa
Wind load	2.400 Pa

Manufacturer warranty

Product warranty	25 years
Warranty	30 years on 87% of nominal power

Certificates

CE
IEC 61215 - Design Qualification and Type Approval
IEC 61730 - Safety Qualification
ISO 14001
ISO 45001
ISO 9001

English

Guarantee
Manual
Other
Data Sheet
Guarantee

German

Data Sheet

JA Solar JAM54D41-445/LB – 445 W, n-type TOPCon, Bifacial Glass-Glass

The JA Solar JAM54D41-445/LB is a 445 W bifacial glass-glass solar module with n-type TOPCon half-cell technology. It achieves a module efficiency of 22.3% and features a durable dual-glass design for long-term performance. With dimensions of 1762 × 1134 × 30 mm, a weight of 22.0 kg, and certified compliance with IEC 61215 / IEC 61730, the module is engineered for both residential and commercial installations. Backed by a 25-year product warranty and a 30-year linear performance guarantee (87.4% output), it delivers maximum reliability and energy yield.

✅ Benefits for Installers

High Efficiency – 22.3% efficiency with advanced n-type TOPCon cells maximizes energy generation per square meter.
Bifacial Power – Glass-glass construction allows energy production from both sides for higher total yield.
Durability – Certified for 5400 Pa snow load and 2400 Pa wind load, ensuring reliability in harsh environments.
Long-Term Security – 25 years product warranty and 30 years performance guarantee (87.4% power retention).
System Compatibility – Rated for 1500 V DC systems, enabling longer strings and reduced BOS costs.
Premium Aesthetics – All-black frame and glass for a sleek, modern look, ideal for rooftops and facades.

Technical Data – JA Solar JAM54D41-445/LB

Rated Power (Pmax): 445 W
Module Efficiency: 22.3 %
Cell Type: 108 half-cut n-type TOPCon monocrystalline cells (182 mm)
Design: Bifacial glass-glass module
Dimensions: 1762 × 1134 × 30 mm
Weight: 22.0 kg
Max. System Voltage: 1500 V DC
Load Resistance: Snow 5400 Pa | Wind 2400 Pa
Temperature Coefficient (Pmax): -0.30 %/°C
Junction Box: IP68, 3 diodes
Certifications: IEC 61215, IEC 61730, CE, ISO 9001/14001/45001
Warranty: 25 years product | 30 years linear performance (87.4% after 30 years)

Secure Your Project Offer

The JA Solar JAM54D41-445/LB delivers 445 W of power, cutting-edge n-type TOPCon efficiency, and the long-term security of a 30-year performance warranty. Its bifacial glass-glass design makes it a robust and future-proof choice for both residential and commercial PV systems. Order via SolarTraders from certified EU distributors with full buyer protection and transparent price comparison.

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Advantages JA Solar Deep Blue 4.0 Pro JAM54D41 LB 430-455W

JAM54D41 LB 430-455W features higher power generation better LCOE, n-type with very low LID, better temperature coefficient and better low irradiance response.

JA Solar

JA Solar Modules – Efficiency and Performance for Professionals

JA Solar is one of the world’s largest manufacturers of photovoltaic modules. Their advanced cell technology ensures high efficiency, stable yields, and long lifespan – suitable for residential rooftops as well as large-scale solar plants. With best value pricing, fast availability, and attractive B2B conditions, JA Solar is the strong choice for professional solar installers.