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Why do flexible solar panels use ETFE membrane materials?

When it comes to flexible solar panel packaging materials, ETFE film materials appear very frequently. Why are flexible boards encapsulated with ETFE? What are the advantages of ETFE?

ETFE membrane material has four major advantages, which are exactly what flexible solar panels need.


1. Strong durability

ETFE is stable and durable, can withstand temperature changes, has a lifespan of 25 to 35 years, is not easily affected by environmental factors, and can effectively protect battery cells.


2.Light weight

Flexible solar panels are often used on car roofs, RV roofs, and roofs, which have certain requirements on the weight of the solar panels. ETFE membranes are light in weight and thin in thickness. Using ETFE membranes for packaging greatly reduces the weight of flexible panels. , the carrier load is small, and the application range of the flexible board is expanded.


3. Good light transmittance

ETFE has good light transmission conditions and can easily withstand high temperatures. Ultraviolet rays can be almost completely transmitted, and the light transmittance can reach 95%. It is encapsulated with ETFE to protect the cells while also allowing the panel to receive solar light to the greatest extent, ensuring that the flexible board Efficient power generation.


4. High stain resistance, self-cleaning

ETFE has a non-sticky surface, and dust and debris in contact with its surface can be easily washed away by rain. This means that flexible boards using ETFE as outer material have strong anti-fouling capabilities and require short maintenance and cleaning time, ensuring that solar panels can generate electricity. efficiency and stability.


Bright Solar's new lightweight flexible solar panels are encapsulated with ETFE film materials, which are stable and durable. In addition to the above advantages, the cells are made of high-conversion-efficiency Class A monocrystalline silicon wafers, with a conversion efficiency of up to 23%.


It is worth mentioning that Bright Solar’s new lightweight flexible panels apply the latest production technology in the industry, have excellent bending flexibility, and can be easily applied to environments with certain curved surfaces.

Made of advanced polymer materials, it is lightweight and ultra-thin, 70% lighter than traditional solar panels, and easy to transport and install.


Highly flexible and perfectly curved design, thin and easy to install, IP68 protection level, Bright Solar's new lightweight flexible board can easily cope with various harsh outdoor environments with poor load-bearing capacity. It is very suitable for RVs, yachts, picnics, camping and other outdoor equipment and use.