Product Overview & System Integration
Our lightweight flexible solar modules are engineered for demanding off-grid environments and weight-restricted commercial roof installations. Manufactured with Grade A mono-crystalline silicon cells and premium ETFE front encapsulation, these panels eliminate the structural limitations of traditional aluminum frames and heavy tempered glass. As a direct China supplier and manufacturer, we support extensive OEM/ODM production. System integrators and EPC contractors can specify custom voltages, precise module dimensions, specific grommet placements, and optimized cable lengths to match proprietary structural designs. These modules natively support series and parallel arrays, functioning directly with industry-standard MPPT charge controllers and hybrid inverters across 12V, 24V, and 48V architectures.

Material & Technical Specifications
| Product Name |
TOPCON Lightweight Flexible Crystalline Silicon Customized Solar Module |
| Battery Cell Type |
TOPCON |
|
Weight |
2.9kg/㎡ |
|
Back plate |
White/ black |
|
Connector |
MC4 compatible |
|
Junction box |
IP68 |

Quality Control & Global Standards
Production consistency is maintained through a rigorous multi-stage quality control protocol. Every lightweight flexible solar module undergoes 100% double Electroluminescence (EL) testing before and after lamination to strictly identify and eliminate hidden micro-cracks or cell defects. Our manufacturing facility complies with ISO9001:2015 quality management systems. All modules pass standard IEC61215 and IEC61730 testing parameters, guaranteeing high performance under extreme temperature fluctuations and severe mechanical loads. Product certifications include TUV, CE, and RoHS, fully validating global wholesale distribution and EPC project compliance.



Product Details
Lightweight Flexible Solar Module Assembly Drawing Engineering Drawings (Unit: mm)
*Length: ±2mm Width: ±2mm

Electrical Performance Parameters (Under Standard Test Conditions)
|
Model |
Lightweight 435W Solar Panel |
Lightweight 440W Solar Panel |
Lightweight 445W Solar Panel |
Lightweight 450W Solar Panel |
||||
|
Test Conditions |
STC |
NOCT |
STC |
NOCT |
STC |
NOCT |
STC |
NOCT |
|
Peak Power [W] |
375 |
300 |
280 |
224 |
186 |
149.2 |
91 |
72.8 |
|
Power Tolerance [W] |
0~3W |
/ |
0~5W |
/ |
0~3W |
/ |
0~3W |
/ |
|
Peak Voltage [V] |
30.22 |
29.94 |
45.29 |
44.53 |
30.19 |
29.37 |
15.06 |
14.47 |
|
Peak Current [A] |
12.41 |
10.02 |
6.19 |
5.12 |
6.19 |
5.08 |
6.09 |
5.03 |
|
Open-Circuit Voltage [V] |
35.39 |
33.62 |
53.05 |
50.41 |
35.36 |
34.01 |
17.65 |
16.77 |
|
Short-Circuit Current [A] |
12.99 |
10.52 |
6.48 |
5.25 |
6.45 |
5.22 |
6.44 |
5.19 |
|
Size [mm] |
1514*1200 |
1146*1200 |
1200*778 |
1200*410 |
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|
|
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* STC (Standard Test Conditions): Irradiance = 1000 W/m², Cell Temperature = 25°C, AM = 1.5, Test Error ±3%
*NMOT (Nominal Operating Temperature Conditions): Irradiance = 800 W/m², Ambient Temperature = 20°C, AM = 1.5, Wind Speed = 1 m/s
Packaging & Logistics Safety
We implement export-grade packaging specific to flexible photovoltaic modules to prevent physical deformation during international sea freight. Panels are interleaved with anti-static EPE foam and packed into highly rigid, heavy-duty corrugated cartons. For bulk wholesale shipments, cartons are tightly secured onto reinforced wooden pallets wrapped in industrial stretch film with hard-angle edge protectors. This stacking configuration minimizes mechanical stress, ensuring 100% integrity of the ETFE surface and silicon cells upon arrival at your warehouse or project site.
Delivery time
|
Quantity (units) |
1-20000 |
>20000 |
|
Lead time (days) |
15 |
Negotiable |
Services
As a solar panel manufacturer, we offer comprehensive customization, design customization, and sample customization
15-year warranty on materials and workmanship
30-year linear power warranty
Typical Application Scenarios

Typical Application Scenarios
Choose the plan that suits you best.
Weight-Restricted Architecture
Thin-metal commercial rooftops, membrane structures, and modular housing.
01
Mobile Power Generation
RVs, caravans, food trucks, and refrigerated transport vehicles.
02
Marine Environments
Yacht decks, buoys, and coastal off-grid installations (requires salt mist corrosion resistance).
03
Remote Infrastructure
Telecom base stations, remote monitoring cameras, and agricultural solar irrigation systems.
04
FAQ
How does this lightweight, flexible solar module integrate with existing 48V off-grid inverters?
Our flexible modules feature standardized MC4-compatible connectors and built-in bypass diodes, supporting multiple series and parallel configurations. They natively adapt to 12V, 24V, or 48V MPPT charge controllers, ensuring exact voltage matching for off-grid RV, marine, and remote telecom power systems.
What is the linear power degradation rate of the ETFE surface over the 15-year warranty period?
We guarantee a first-year power degradation of less than 2%, with an annual attenuation strictly controlled under 0.55% thereafter. The industrial-grade ETFE encapsulation resists salt mist and continuous UV radiation, maintaining over 85% of nominal power output at year fifteen.
Can the China factory customize dimensions and junction box placement for bulk orders?
Yes, as a direct manufacturer, we provide deep OEM modifications. For wholesale orders exceeding 100 units, our engineering team adjusts panel dimensions, structural layouts, grommet placements, and cable lengths within 15 days, matching your specific installation surface and wiring requirements.
Request Wholesale Pricing & OEM Support
Request a precise system wiring diagram and wholesale project quote within 24 hours. Batch OEM samples available for factory quality testing and structural validation. Contact our global procurement team directly.
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