If you are looking for 420W 430W 440W high efficiency solar panels, please choose Luan ZHU JKL108-B- (420-440) NB, using Topcon solar cell technology, bifacial power generation is more efficient, we sell the solar panels at the best price and provide 30 years after-sales service!
At Lu'an Solar, we are committed to providing efficient and reliable solar energy solutions to the world. As an industry-leading solar panel manufacturer, we promote the application and development of clean energy with cutting-edge technology and superior quality. Our solar panels not only have excellent conversion efficiency and long-lasting durability, but they can also adapt to a variety of harsh environments, helping you maximize the use of natural light, reduce your carbon footprint, and save on energy costs.
Residential Rooftop Installations
Commercial and Industrial Buildings
Ground-Mounted Solar Farms
Floating Solar Projects
Solar Canopies and Carports
Agrivoltaics
High-Radiation Regions
420-440W Bifacial solar panels for sale at the best prices
We are a manufacturer of bifacial solar panels with a 30-year after-sales warranty!
We have 400W, 415W, 420W ......700W solar PV panels for sale!
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Power Guarantee
Annual Decay
The core strength of Topcon 440W and 420W bifacial solar panels lies in their exceptional energy conversion efficiency. Thanks to TOPCon technology (Tunnel Oxide Passivated Contact), these panels significantly improve electricity conversion, achieving an efficiency rate of over 22%. This means more energy production per square meter, delivering greater returns for homeowners, businesses, and large-scale solar projects.
One of the standout features of Topcon bifacial solar panels is their ability to generate power from both sides. In addition to capturing direct sunlight on the front, the back of the panel also absorbs reflected light from the ground. This dual-sided design can increase overall energy output by 10% to 30%, especially in areas with high albedo, such as reflective rooftops or sandy surfaces. This makes Topcon 440W 420W bifacial solar panels ideal for projects in high solar radiation regions, where maximizing energy yield is critical.
To withstand challenging outdoor environments, Topcon bifacial solar panels are built with high-strength materials, offering excellent resistance to weathering and aging. Whether in extreme heat, freezing cold, dust storms, or humid conditions, these panels maintain optimal performance. Their long-lasting reliability ensures that projects can generate stable energy over the long term, providing consistent returns on investment and reducing maintenance costs.
The Topcon 440W 420W bifacial solar panels are highly versatile, making them suitable for various applications. Whether for residential rooftop solar systems, commercial building projects, or large-scale ground-mounted solar farms, these panels deliver superior performance. They are lightweight and easy to install, compatible with various mounting systems, and can be customized to meet the specific needs of different projects.
As the world moves toward carbon neutrality, adopting high-efficiency clean energy solutions has become essential. Topcon bifacial solar panels not only help reduce electricity costs but also significantly lower carbon emissions. With higher energy efficiency and a longer lifespan, Topcon solar panels improve energy utilization, support the transition to renewable energy, and promote environmental protection and sustainable development.
Luan Topcon 440W 420W bifacial solar panels combine advanced TOPCon technology, high-efficiency bifacial design, and durable materials to deliver superior energy output and long-term reliability. Whether you’re a homeowner, business owner, or managing a large-scale solar project, these panels are the ideal solution for maximizing energy production and minimizing operational costs.
If you have any questions, please contact us for further assistance!
Cell | N-type TOPCon(108) |
Dimensions | 1722±2mm×1134±2mm×30±1mm |
Weight | 24kg±3% |
Glass | 2.0mm AR coating heatstrengthened glass,low iron |
Frame | Anodized aluminium alloy |
junctionbox | IP68,3 diodes |
Wireway | 4mm²,350mm(+)/350mm(-)or customized length |
Packaging | 36 pieces/pallet |
Loading quantity | 40HQ:936pieces,17.5 meter truck:1152pieces |
Maxsystem voltage | 1500V DC |
Operating Temperature | -40℃ ~+85℃ |
Fuse's rated current | 25A |
Maxload front | 5400Pa |
Maxload back | 2400Pa |
Cell nominal operating temperature | 45±2°C |
Safety level | Class ll |
Fire performance | UL Type l |
Module | JKL108-B-420NB | JKL108-B-425NB | JKL108-B-430NB | JKL108-B-435NB | JKL108-B-440NB |
STC/NOCT | (FS)(FS)(RS)STCNOCTSTC | (FS)(FS)(RS)STCNOCTSTC | (FS)(FS)(RS)STCNOCTSTC | (FS)(FS)(RS)STCNOCTSTC | (FS)(FS)(RS)STCNOCTSTC |
Maximum power [W] | 420316336 | 425320340 | 430324344 | 435328348 | 440332352 |
Maximum working voltage [V] | 31.9129.9931.88 | 32.1130.2132.08 | 32.3130.4132.28 | 32.5260.6232.48 | 32.7530.8332.65 |
Maximum working current [A] | 13.2710.7110.54 | 13.3510.7910.61 | 13.3210.6610.65 | 13.3910.7110.72 | 13.4610.7810.79 |
Open circuit voltage [V] | 38.5136.5838.48 | 38.7136.7738.68 | 38.9136.9638.88 | 39.1137.1539.08 | 39.3239.3339.29 |
Short circuit current [A] | 13.8311.0611.01 | 13.9111.1511.09 | 13.9911.1911.14 | 14.0711.2611.21 | 14.1511.3111.26 |
EFF [%] | 21.52% | 21.83% | 22.02% | 22.31% | 22.53% |
Power tolerance(W) | 0 ~+5W | ||||
Short circuit current temperature coefficient | +0.046%/℃ | ||||
Open circuit voltage temperature coefficient | -0.250%/℃ | ||||
Maximum power temperature coefficient | -0.300%/℃ | ||||
STC | Irradiance 1000W/m², Cell temperature 25°C,Spectral AM1.5 | ||||
NOCT | Irradiance 800W/m², Ambient temperature 20℃, Spectrum AM1.5, Wind speed1m/s |
Note: The electrical performance in this product catalog do not only refer to a single module, or are they promised in the contract. The electrical parameters are only used for comparison between different module types.