WSL Solar – Your Reliable Partner for Custom Solar Panels

WSL Solar has been a quality and professional manufacturer of customized solar panels and solar solution provider in China since 2006. 

With our more than 15 years’ experience in solar industry, we are able to design and develop a tailor-made solar panel in a variaty of sizes, shapes and power outputs to meet our client’s specific requirement, and provide solution support to our customers starting from their initial product development stage. 

Welcome to contact us for quality and high efficiency custom solar panels

How to Choose a Small Solar Panel That is More Suitable for Your System?

Stand-alone solar panels are widely used in various industries such as remote telemetry, security, monitoring, fence charger, gate opener, intelligent traffic, senor, IoT and aviation obstruction lights, especially with the improvement of solar cell conversion efficiency and the decrease in the cost per W of the solar panel will inevitably further expand the application range of custom shaped solar panels. How should we choose the solar panel suitable for our system?

small solar panels

Small Solar Panels

1. If the product needs to be placed in harsh environments on the sea, desert, wetland, etc. for a long time, we recommend using glass solar panels. Because glass has the advantages of high light transmittance, hard texture and stable physical and chemical properties, it can well protect solar cells from being oxidized and crushed. However, the disadvantage of glass solar panels is that the unit weight is heavier than other types of solar panels of the same power and the glass is fragile. It is not suitable for products that need to be carried and transported for a long time, but is suitable for stationary systems. At the same time, we recommend that the solar panels be sealed with glue or silica gel, so that the life of the solar panels can be greatly extended.

2. If solar panels are used in consumer electronics, such as outdoor camping, solar chargers, GPS trackers, etc., we recommend using non-glass laminated solar panels, such as rigid solar panel, semi-flexible solar and fully flexible solar panels and foldable solar panels. Currently popular packaging materials are PET film and ETFE film. PET film is made of plastic. If this material is placed outdoors for a long time, its surface will become brittle and atomized. If a layer of coating is added to the PET surface, this coating will fall off after about 0.5 years, making the surface of the solar panel very unsightly and greatly reducing the power output of the solar panel. If the surface of the solar panel is ETFE film, its lifespan will be longer. We generally think that its lifespan may last 3-5 years. However, such non-glass-encapsulated solar panels must avoid impact on the surface and squeeze around them to avoid damage to the solar cells inside and affect the power output of the solar panels.

Sort by low-light performance of solar panels:
Thin-film Solar Panel> Mono PERC solar panels> Traditional Monocrystalline Solar Panels> Polycrystalline Solar Panel.
So solar panels are used in indoor environments, we recommend thin film solar panels. If it is used outdoors, but the light is not very good, you can consider PERC Mono solar panels and traditional mono solar panels. If it is used in a well-lit outdoor environment, you can choose PERC mono, traditional mono and poly solar panels.

Sort by solar panel conversion efficiency:
Mono PERC solar panels> Traditional Monocrystalline Solar Panels> Polycrystalline Solar Panel> Thin-film Solar Panel.
At present, the highest conversion efficiency and large-scale commercial use are Mono PERC solar panels, and the lowest efficiency is thin-film solar panels.
If it is used for indoor wireless sensors, calculators, etc., you can choose thin-film solar panels. If it is used for outdoor GPS TRACKER, IOT, traffic lighting, etc., you can use PERC or traditional monocrystalline solar panels. If it is used for signal tower, small off-grid power station, you can choose Mono PERC solar panels or polycrystalline solar panels.

With the further improvement of technology, when thin film solar panels, traditional monocrystalline solar panels and polycrystalline solar panels encounter bottlenecks, Mono PERC solar panels will become the choice of most people. As a manufacturer of small solar panels, WSL Solar will provide customers with very constructive suggestions during the product development phase to avoid saving development time and money.

Posted by Carrie Wong | WSL Solar Co., Ltd.
WSL Solar has been a quality and professional manufacturer of custom shaped solar panels and solar solution provider in China since 2006.

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What is an Organic Solar Cell?

Detailed explanation of the characteristics and structural principles of organic solar cells

Organic solar cells are solar cells that consist of organic materials at the core. It is mainly based on organic materials with photosensitive properties as semiconductor materials, and the photovoltaic effect generates voltage to form a current to achieve the effect of solar power generation.

Custom Solar Panels

First, the characteristics of organic solar cells

As a new type of solar cell device, organic solar cells have the characteristics of flexibility, light weight, adjustable color, solution processing, and large-area printing preparation. They are currently a hot spot in the field of solar cell research. But low efficiency is the main reason that limits its large-scale application.

Second, the structural principle of organic solar cells

1. The principle of organic solar cells

Organic solar cells use photosensitive organics as semiconductor materials, and generate voltages to form currents by the photovoltaic effect. The main photosensitive organic materials have conjugated structure and conductivity, such as phthalocyanine compounds, porphyrins, cyanines, etc.

2. Several structures of organic solar cells

Organic solar cells can be divided into single junction structure, P-N heterojunction structure, and dye-sensitized nanocrystalline structure according to semiconductor materials.

3. Single junction structure

The single-junction structure is an organic solar cell made based on the principle of Schottty barrier. Its structure is glass/metal electrode/dye/metal electrode, which uses the different work functions of the two electrodes to generate an electric field. Electrons are transferred from the metal electrode with low work function to the electrode with high work function to generate photocurrent. Since electrons and holes are all transferred in the same material, the photoelectric conversion rate is relatively low.

4. P-N heterojunction structure P-N

The heterojunction structure refers to a heterojunction structure with a donor-acceptor (N-type semiconductor and P-type semiconductor). Among them, semiconductor materials are mostly dyes, such as phthalocyanine compounds and perylene tetraformaldehyde imine compounds, using the D/A interface (Donor—donor, Acceptor—acceptor) and electron-hole separation between semiconductor layers. The transfer characteristics in different materials increase the separation efficiency. Elias Stathatos and others combined the advantages of inorganic and organic compounds to make solar cells with a photoelectric conversion rate of 5% to 6%.

5. NPC (nanocrystaline photovoltaic cell) dye-sensitized nanocrystals

Dye-sensitized solar cell (DSSC) mainly refers to a type of solar cell that uses dye-sensitized porous nanostructured TiO2 film as the photoanode. It is a solar cell that mimics the photosynthesis principle of plant chlorophyll. However, NPC solar cells can choose appropriate redox electrolytes to increase the photoelectric efficiency, which can generally be stabilized at 10%, and nanocrystalline TiO2 is easy to prepare, low in cost, and has a considerable life span, which has a good market prospect.

Posted by Carrie Wong | WSL Solar Co., Ltd.

WSL Solar has been a quality and professional manufacturer of custom solar panels and solar solution provider in China since 2006.

Custom Solar Panel, 10W 3V

WSL Solar’s 3V 10W solar panel is built with the latest PERC monocrystalline solar cell. It is laminated by tempered glass, which is durable and robust. This custom solar panel is ideal for use in off grid applications such as solar powered LED lighting, IoT solar, solar traffic sign, small solar powered system etc.

  • Features:
  • – WSL Solar’s 3V 10W solar panel adopts the latest PERC monocrystalline solar cell,  >21% efficiency.
  • – Dimension 345x190x18mm
  • – Laminated by tempered glass, durable & robust
  • – Ideal for use in solar powered LED lighting, IoT solar,solar traffic sign and small solar powered systems etc.
custom solar panel, 10w solar panel
10W Solar Panel


Item No.WSL-C025
Peak Power (Pmax)10.5W
Voltage at Pmax (Vmp)3.3V
Current at Pmax (Imp)3.182A
Open Circuit Voltage (Voc)3.96V
Short Circuit Current (Isc)3.5A
Cell TypePERC Monocrystalline Solar Cell
Power Tolerance±5%
Encapsulation method3.2mm Tempered glass
Back sheetTPT
Product Warranty5 Years
Lead time25 Days
Storage temperature-20°C ~ 65°C
Working temperature-40°C ~ 85°C
Standard Test Conditions (STC)1000W/m2, 1.5AM, 25°C Cell temperature

Click here to watch the video of this type of custom solar panels. 

View More Custom Solar Panels 5V Solar Panels   |  6V Solar Panels   |  9V Solar Panels

WSL Solar has been a quality and professional manufacturer of custom solar panels and solar solution provider in China since 2006. 

How to Inquire a Custom Solar Panel?

There are different types of custom solar panels: tempered glass solar panel or PET solar panel; mono solar panel or poly solar panel; black solar panel or white solar panel; with frame or not; with junction box or with ribbon only; need wire and terminal or not etc. Do you know how to inquire a custom solar panel? Hope this video could be helpful for you.

How to Inquire a Custom Solar Panel?

What is IBC Solar Panel ?

IBC solar panels are built with the super high efficiency IBC solar cells (“Interdigitated back contact” solar cells). They are laminated by ETFE or PET film, which is light weight and thin. Thess customized solar panels are ideal for use in off grid applications such as IoT devices, smart phones, radio, Bluetooth, wireless sensors, RF Radio Sensitivity or solar gifts etc.

– IBC solar cell with efficiencies of up to 23% guarantee high power output
– Matte finish and no busbar on panel surface
– ETFE or PET laminated, light weight and thin
– Waterproof, scratch resistant & UV resistant
– Excellent performance under low light environments
– Custom manufacturing in various size & shapes available upon request

Lists of existing IBC solar panels from WSL Solar.

ItemSpecificationSizeSolar Cell TypeLamination
WSL-S0016V 1.2W Custom Solar Panel85x85x1.8mmIBC Solar CellPET Film
WSL-S0025V 0.2W Round Solar PanelD=43mmx1.8mmIBC Solar CellPET Film
WSL-S0032V 80mA Small Solar Panel40x30x1.8mmIBC Solar CellPET Film
WSL-S0045V 0.75W mini Solar Panel70x60x2mmIBC Solar CellETFE Film
WSL-S0055V 1W IoT Solar Panel95x69x2mmIBC Solar CellETFE Film
WSL-S0064V 150mA Custom Solar Panel93x40x2mmIBC Solar CellPET Film
WSL-S0075.5V 1W Small Solar Panel80x80x2mmIBC Solar CellETFE Film
WSL-S0086V 120mA Circular Solar PanelD=89mmx2mmIBC Solar CellETFE Film
WSL-S0095V 0.6W ETFE Solar Panel65x65x2mmIBC Solar CellETFE Film
WSL-S0105.5V 1.6W ETFE Solar Panel120x70x2mmIBC Solar CellETFE Film
WSL-S0113V 0.4W PET Solar Panel57x50x2mmIBC Solar CellPET Film
WSL-S0125.5V 0.2W Mini Solar Panel30x50x2mmIBC Solar CellPET Film
IBC Solar Panels

WSL Solar has been a quality and professional manufacturer of customized solar panels and solar solution provider in China since 2006.

Ensuring Power Supply and Promoting the Construction of Large-scale Photovoltaic Bases

In the past two weeks (09.27-10.10), in response to power supply issues, the State Council of China convened an executive meeting to speed up the construction of large-scale photovoltaic bases and promote the implementation of energy-saving and carbon-reducing transformations in key areas. The arrangements made by the State Council will solve the problem of power cuts that have recently appeared, and ensure the basic lives of the people and the smooth operation of the economy. In these deployments, photovoltaics will play an important role. The following is the domestic and international photovoltaic industry information in the past two weeks.

WSL Solar – Manufacturer of Quality Custom Solar Panel 

China Photovoltaic Industry Information

State Council: Ensuring power supply and promoting the construction of large-scale photovoltaic bases

On October 8, the State Council of China held an executive meeting to further make arrangements for the supply of electricity and coal this winter and next spring to ensure the basic lives of the people and the smooth operation of the economy. The meeting pointed out that reforming and improving the market-oriented formation mechanism of coal and electricity prices, adjusting the fluctuation range of market transaction electricity prices from no more than 10% and 15%, respectively, to no more than 20% in principle. The industry can form prices through market transactions and is not subject to a 20% rise. Accelerate the construction of large-scale wind power and photovoltaic bases in the Gobi desert area, and accelerate the construction of emergency standby and peak shaving power sources. Resolutely curb the blind development of the “two highs” project. Improve the local energy consumption dual control mechanism, and promote that new renewable energy consumption will not be included in the total energy consumption within a certain period of time. Promote the implementation of energy-saving and carbon-reduction transformations in key areas.

Encourage rooftop distributed photovoltaic development

On September 30, ten ministries and commissions including the National Development and Reform Commission and the Ministry of Natural Resources issued the “Notice on Printing and Distributing Guidelines for the Standardized and Healthy Development of National Characteristic Towns.” The “Guidelines” pointed out that characteristic towns should, in accordance with the carbon peak and carbon neutral requirements, coordinate to promote high-quality economic development and high-level protection of the ecological environment. Promote clean, low-carbon, safe and efficient use of energy, guide non-fossil energy consumption and the development of distributed energy, develop rooftop distributed photovoltaics where conditions permit, promote clean heating and contract energy management. Promote low-carbon transformation in industry, construction, transportation and other fields, resolutely curb the blind development of “two highs” projects, vigorously develop green buildings, promote prefabricated buildings, energy-saving doors and windows, and green building materials, and promote green construction.

Tianjin promulgated regulations on promoting carbon peak and carbon neutrality to support the development of non-fossil energy such as solar energy

On September 27, the 29th meeting of the Standing Committee of the 17th Tianjin Municipal People’s Congress reviewed and approved the “Regulations on the Promotion of Carbon Peak Carbon Neutrality in Tianjin”, which will come into force on November 1, 2021. The “Regulations” put forward in the “Green Transition” section to support the development of non-fossil energy such as wind energy, solar energy, geothermal energy, and biomass energy, gradually expand non-fossil energy consumption, coordinate the promotion of hydrogen energy utilization, and promote low-carbon energy to replace high-carbon energy.

Lishui, Zhejiang: Accelerate the promotion of distributed photovoltaics and implement the “Photovoltaic +” project

On October 9, the Development and Reform Commission of Lishui City, Zhejiang Province issued a notice on publicly soliciting opinions on the “Implementation Opinions of the People’s Government of Lishui City on Accelerating the Development of Distributed Photovoltaics (Draft for Solicitation of Comments)”. The “Draft for Comments” requires that the large-scale development of distributed photovoltaic counties (cities, districts) is the starting point, and the “photovoltaic +” project will be fully implemented to promote the high-quality development of the green and low-carbon energy industry, and strive to build a green energy base in East China. Strive to add 1.5 million kilowatts of photovoltaic power to the city during the “14th Five-Year Plan” period, and implement policy support for financial rewards and subsidies.

International Photovoltaic Industry Information

Germany’s third-largest state requires solar energy to be installed on the roofs of all new houses

On October 6, the State Assembly of Baden-Württemberg in Germany passed a legal amendment requiring that from May 1 next year, all newly built houses in the state be installed with solar installations on the roof. From January 1, 2023, all existing buildings in the state will also be retrofitted with solar installations on the roof. This move aims to enable the state to achieve its goal of carbon neutrality by 2030. Baden-Württemberg is the third largest state in area and population in Germany, and the state capital Stuttgart is the headquarters of many well-known companies such as Daimler. 

Kazakhstan: Double the share of renewable energy power generation by 2023

According to the official website of the Prime Minister of Kazakhstan, Ma Ming, the Prime Minister of Kazakhstan, hosted a video conference of the Council for the Improvement of the Investment Environment on October 9 to study the development of renewable energy and the transition to a “low-carbon economy”. In order to achieve the goal of achieving “carbon neutrality” by 2060 proposed by President Tokayev at the United Nations Climate Ambition Summit, the Kazakh government plans to double the share of renewable energy power generation by 2023 to 6%, compared with the previous one. The planned realization of this goal in 2025 is greatly advanced. In the next four years, the Kazakh government also plans to put into operation more than 60 new renewable energy projects, with a total installed capacity of 2,400 MW and a total investment of more than 2.5 billion US dollars.

Posted by Carrie Wong | WSL Solar

WSL Solar has been a quality and professional manufacturer of custom solar panel and solar solution provider in China since 2006.