JA Solar JAM54S30-420/LR 420W monokristályos napelem - félcellás, ezüst keret

Payment and delivery

Payment
You can pay for your order by bank transfer, in HUF or EUR. We will send you a payment request by email, which includes the necessary data for the transfer. If you would like a unique payment method (for example, cash or cash on delivery), select the “Unique payment plan” option and our colleagues will contact you to discuss the details.

Transport
The shipping fee depends on the size and type of the ordered product. For smaller packages, the home delivery fee is 3,790 HUF, for larger products it is 6,490 HUF. For solar panels, batteries and other large products, the delivery is based on an individual price quote, which our staff will always discuss with you after placing the order.

Product description

JA Solar's 420W solar panel is the perfect combination of reliability and efficiency. The panel is made with half-cut and PERC technology, providing outstanding performance for both residential and small business systems.

The half-cell design means that the solar cell cells are cut in half, reducing electrical resistance and generating less heat during operation. This allows the panel to produce stably even in shady or hot environments, and to operate with less energy loss.

The essence of PERC (Passivated Emitter Rear Cell) technology is that there is an additional reflective layer on the back of the solar cell. This layer reflects the sunlight passing through the cell, so the panel utilizes more light and achieves higher efficiency for the same size. The 420 W output is accompanied by an efficiency of around 21.5%, which is an outstanding value in the category.

The silver aluminum frame gives the panel an elegant look while ensuring mechanical strength and weather resistance. JA Solar is one of the world's largest Tier 1 solar panel manufacturers, with over 15 years of experience, a reliable background, and strong warranties.

Main advantages

420 W power, approx. 21.5% efficiency
Half-cell technology – less loss, better production
PERC technology – more light, higher yield
Excellent performance in hot or shady environments
Silver frame, durable and elegant design
12-year product, 25-year performance warranty

JA Solar JAM54S30-420/LR 420W monocrystalline solar panel - half cell, silver frame

Name: JA Solar JAM54S30-420/LR 420W monocrystalline solar panel - half cell, silver frame
Brand: JA Solar
SKU: JAS-JAM54S30-420/LR
Price: 31204.00 HUF
Availability: InStock

Vendor: JA Solar

Type: Solar panel

SKU: JAS-JAM54S30-420/LR

31.204 Ft

Tax included.

Available in stock

Warranty: 12 years

Payment and delivery

Product description

Main advantages

420 W power, approx. 21.5% efficiency
Half-cell technology – less loss, better production
PERC technology – more light, higher yield
Excellent performance in hot or shady environments
Silver frame, durable and elegant design
12-year product, 25-year performance warranty

JA Solar JAM54S30-420/LR 420W monocrystalline solar panel - half cell, silver frame

31.204 Ft

Névleges teljesítmény (Wp)	420 Wp
Modul hatásfok (%)	21.50%
Cellatípus	Monocrystalline, half-cell (Half-Cell)
Teljesítménygarancia	25 years
Termékgarancia	12 years
Mechanikai terhelés	Front: 5400 Pa, Rear: 2400 Pa
Maximális teljesítmény feszültség (Vmp)	32.05 Sun
Maximális teljesítmény áramerősség (Imp)	13.11 A
Nyitott áramköri feszültség (Voc)	38.70 V
Rövidzárlati áramerősség (Isc)	13.86 A
Hőmérsékleti együttható Pmax (%/°C)	-0.35%/°C
NOCT (°C)	45 ± 2°C
Cellák száma	108 (6×18)
IP védelem	IP68
Méret	1722 × 1134 × 30mm
Tömeg	22.0 kg

Do you have a question?

View the most frequently asked questions or contact us.

How do solar panel types differ?

Polycrystalline panels, often used in older systems, have now been pushed into the background due to their lower efficiency and poorer performance in lower light conditions.

Our webshop offers only modern monocrystalline panels, which provide higher energy yield on less surface area and have a longer lifespan.

Monocrystalline panels can be monofacial (only the front side is active) or bifacial, which also utilizes light reflected from the back side — thus being able to produce up to 10–20% more energy under optimal conditions.

What solar panel should I choose for the inverter?

The type of solar panels should be selected based on the inverter's MPPT voltage range and current limits. It is important that the operating point voltage of the panels falls within the specified range and that the series-connected arrays do not exceed the inverter's maximum input voltage.

What happens if one of the panels is in shadow?

If a panel is partially shaded, it will also reduce the power of the other panels in the same string, since the current strength within the string is the same for all modules.
This problem can be avoided with optimization modules (optics). The optimizer monitors and controls the operating point (MPPT) for each panel, so that the shaded panel does not reduce the performance of the others.

Optimizers work like DC/DC converters: if a panel produces less, the device increases voltage and decreases current (or vice versa) to keep the power of all panels within the string balanced.

How does tilt and orientation affect the performance of solar panels?

The performance of solar panels is determined by the angle of incidence of the sun: the more perpendicular the light hits, the greater the production.

In Hungary, the optimal yield is given by a southern orientation and a tilt angle of 35–40°.

With an east-west layout, annual production is approximately 5–10% lower, but daily energy production is more even, which can be beneficial if consumption is high in both the morning and afternoon.

What warranty does the solar panels have?

Manufacturers usually offer a 12–15 year product warranty and a 25 year performance warranty, which means that the panels will still provide at least 80–85% of their rated performance after two decades.