Tongwei TWMNH-48HE445-FB 445W monocrystalline solar panel - bifacial, black frame
Tongwei TWMNH-48HE445-FB 445W monocrystalline solar panel - bifacial, black frame
Available in stock
Payment and delivery
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
Product description
Tongwei's 450W solar panel is made with the new generation N-type TOPCon technology, which ensures high efficiency, low degradation and long lifespan. The panel is bifacial, meaning that the back side can also generate energy from reflected light — achieving up to 5-25% additional production under ideal conditions.
TOPCon technology (Tunnel Oxide Passivated Contact) is an improved version of traditional PERC cells. Its essence is that a special passivation layer on the back side of the cell reduces energy loss, so the solar cell achieves better efficiency even at high temperatures and performs more stably over decades.
The double-glazed design increases mechanical strength and weather resistance, while the silver aluminum frame provides an elegant look and corrosion-resistant protection. The module is ideal for single-family homes, small businesses and modern solar systems.
Main advantages
- 450 W power, ~22.6% efficiency
- N-type TOPCon technology – higher energy yield and low degradation
- Bifacial design – backside production up to +25%
- Double glass for extra durability and longevity
- Silver aluminum frame, modern look
- 15-year product, 30-year performance warranty
| Névleges teljesítmény (Wp) | 445 Wp |
|---|---|
| Modul hatásfok (%) | 22.30% |
| Cellatípus | Monocrystalline, half-cell (Half-Cell) |
| Teljesítménygarancia | 30 years |
| Termékgarancia | 15 years |
| Mechanikai terhelés | Front: 5400 Pa, Rear: 2400 Pa |
| Maximális teljesítmény feszültség (Vmp) | 31.18 Sun |
| Maximális teljesítmény áramerősség (Imp) | 14.27 A |
| Nyitott áramköri feszültség (Voc) | 37.15 V |
| Rövidzárlati áramerősség (Isc) | 15.18 A |
| Hőmérsékleti együttható Pmax (%/°C) | -0.29 %/°C |
| NOCT (°C) | 45 ± 2°C |
| Cellák száma | 96 (6×16) |
| IP védelem | IP68 |
| Méret | 1762 × 1134 × 30mm |
| Tömeg | 23.5 kg |
Do you have a question?
View the most frequently asked questions or contact us.
How do solar panel types differ?
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?
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?
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?
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?
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.
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