JA Solar JAM54D41-LB - 460W Bifacial Glass-Glass Full Black (N-Type)

The JA Solar JAM54D41-LB 460W is an absolute premium solar module that combines maximum performance, extreme durability and an elegant "full black" aesthetic. Thanks to the advanced N-Type cell technology this module achieves an impressive nominal output of 460 watts on a standard surface area (less than 2 m²), making it the perfect choice for modern homes with limited roof space.

The Double glass construction (glass-glass) makes the module extremely resistant to environmental influences such as hail, salt or ammonia and ensures significantly higher fire safety than conventional glass-foil modules. As a bifacial module, it also utilises the scattered light from the rear to generate electricity, which increases the yield, especially on cloudy days.

Highlights at a glance

• N-Type technology: Uses state-of-the-art cell chemistry for higher efficiency, better low-light behaviour and almost zero light-induced degradation (LID).
• Bifacial power generation: The active back of the module also converts reflected light and ambient light into energy, which can increase the total yield (depending on the mounting method) by 5-30%.
• Glass-glass construction: Two layers of tempered glass hermetically protect the cells, resulting in outstanding mechanical strength and durability.
• Elegant full black design: Black frame, black cells and a dark back ensure a homogeneous, unobtrusive look that blends in perfectly with dark roofs.
• High efficiency: With 460 watts of peak power in compact dimensions, it is one of the most powerful modules in its class (108 half cells).
• Long-term guarantee: Benefit from an industry-leading 25-year product guarantee and a 30-year linear performance guarantee.

Areas of application

• Private roof systems: Ideal for homeowners who value maximum aesthetics (black look) and maximum security (glass-glass).
• Carports & patios: Thanks to its bifacial properties and robust glass backing, it is also suitable for semi-open canopies.
• Trade & industry: For projects where durability and fire protection class (often better for glass-glass) are crucial.

Installation & safety instructions

• Clamping range: When installing, pay attention to the clamping ranges specified by the manufacturer on the 30 mm frame in order to guarantee the warranty and snow load capacity (5400 Pa).
• Glass handling: Although glass-glass modules are stable, they are sensitive at the corners. Never place the modules unprotected on the corners during installation (use edge protection!).
• Cable management: Bifacial modules often have a slightly shorter junction box or cable (approx. 1.2 m). Before planning the string, check whether the cable length is sufficient for your planned installation type (vertical/crosswise) or whether extension cables are required.

Properties

FAQs about the JA Solar JAM54D41-LB

What are the benefits of "Bifacial" for a Full Black module on a normal roof?

Even when installed parallel to the roof (at a distance of approx. 10 cm from the tiles), scattered light and reflection still get under the module. Although the "extra gain" here is less than with a flat roof with a white substrate, the bifacial cell still helps to better utilise diffuse light. However, the main advantage of "full black" is the glass-glass stability and the optics.

Why is N-Type better than P-Type?

N-type cells have a different doping (phosphorus instead of boron). As a result, they do not suffer from the "LID effect" (Light Induced Degradation), i.e. they do not lose any power in the first few hours of operation. They also have a better temperature coefficient – so they deliver more power than conventional modules even on hot summer days.

Will the module fit on my balcony power station?