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JA Solar 440W N-type Bifacial Double Glass Mono GB Traceable Black Frame MC4 Solar Panels

JA Solar 440W N-type Bifacial Double Glass Mono GB Traceable Black Frame MC4 Solar Panels

 4.79 (752 reviews)
Regular price €71,72
Regular price €71,72 Sale price €82,56
Save 13% Sold out

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JA Solar 440W N-type Bifacial Double Glass Mono GB Traceable Black Frame MC4 Solar Panels

JA Solar 440W N-type Bifacial Double Glass Mono GB Traceable Black Frame MC4 Solar Panels

 (357 Reviews)
Regular price €71,72
Regular price €71,72 Sale price €82,56
Save 13% Sold out
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What’s Included?

Every order comes with the Red Light Therapy Cap and a USB charging cable for convenient charging and everyday use.

If you choose one of the larger bundles, your package may also include a 2-month or 4-month supply of the brand’s botanical hair oil, depending on the option selected at checkout.

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Shipping & Returns

Orders are usually processed within 2–3 working days, Monday to Friday. International delivery typically takes between 7–12 working days.

Please note that weekends and public holidays are not included in processing times.

During periods of high demand, dispatch and delivery may take slightly longer than usual. We appreciate your patience while your order is on its way.

Orders placed later in the week may not be shipped until the following Monday if processing is not completed by Friday evening.

All purchases are covered by a 30-day money-back guarantee. If your item arrives damaged, faulty, or does not meet your expectations, you may request a return within 30 days of delivery.

For shipping enquiries, returns, or general support, please contact the customer service team via the email address provided on the website.

  • I’ve never bought anything from social media before, but this was worth it. After a a month, my hair actually feels a bit thicker!

    Harry B.
  • I was feeling a lit bit septic about this but after a month using at work I notice a huge diference

    Julia D.
  • GREAT INVESTMENT!!!! 3 MONTHS ONLY AND SAVED ME FROM GOING TO TURKEY FOR A SURGERY

    Rob N.

    JA Solar 440W N-type Bifacial Double Glass Black Frame MC4-EVO2 Solar Panel

    Thinking of installing a solar panel in your home, farm, or garden office? Look no further. These solar panels are reliable, efficient, and cost-effective with an attractive payback period. Well-designed in a durable black frame, these panels are suitable for domestic, farm, garden office, and similar rooftop installations.

    The JA Solar 440W N-type Bifacial Double Glass Black Frame MC4-EVO2 (JAM54D40-440/LB) solar panel is a 440W bifacial highest efficiency monocrystalline module. Powered by the latest MBB n-type solar cell and half-cell configuration, these modules have higher output power, lower LID, better weak illumination response and better temperature coefficient. JA solar panels come with a 25-year product warranty and a 30-year linear output warranty.

    Ideal for off-grid photovoltaic solar energy installations, these panels stand out for their incredible quality/price ratio and their great power in a small size.

    Key Features: 

    • Assembled with Multi-Busbar Bifacial n-type Cells and Half Cell Configuration. Capable of absorbing light from both front and rear sides, producing a high power yield and low shading losses.
    • Enhanced reliability and durability with double glass pane encapsulation. Highly tolerant to harsh environmental conditions and resistant to PID in accordance to IEC 62804. 
    • Improved all weather performance due to superior low irradiance performance and due to low temperature coefficient values.
    • Certified to withstand high wind loads (2400Pa) and heavy snow loads (5400Pa).
    • SUPERIOR WARRANTY: 25-year product warranty and 30-year extra linear power output warranty.

      Must be installed by a licensed technician or electrician.

      In the Box:

      • JA Solar 440W Monocrystalline Bifacial Solar Panel
      • JA Solar 440W Monocrystalline Bifacial Solar Panel Installation Manual

      Delivery:

      • TWO WORKING DAY SHIPPING if ordered by 5 PM on a working day (longer to the Scottish Highlands, Islands, and Northern Ireland).

        Detailed specifications:

        Rated (Peak) Power (Wp): 440W in Standard 1000w/m2 solar light
        Open Circuit Voltage (Voc): 39.38V (Vmp =33.37V)  
        Short Circuit Current (Isc): 13.85A (Imp = 13.18A)
        Efficiency: 22.5%
        Cell Type: Monocrystalline Silicon
        Connector Type: MC4
        Certification: IEC ISO UL
        Net Weight: 21.5 KG
        Size:  1722 X 1134 X 30 mm
        Mounting hole gap: 1096 mm

        Frequently Asked Questions

        HOW GOOD IS THE JA SOLAR PANEL?

        JA Solar panels offer affordability, comparable to Trina Solar, LONGi Solar, and Canadian Solar. With an average efficiency ranging from 20% to 21%, JA panels are among the most efficient in their price range. These panels are known for their durability and excellent shading tolerance.

        WHO MANUFACTURES JA SOLAR PANELS?

        JA Solar Holdings, a solar development company founded in Yangpu district, Shanghai, manufactures JA Solar panels. The company, established in 2005, is based in the People's Republic of China and engages in the design, development, manufacturing, and sale of solar cell and solar module products. JA Solar has a global presence, selling its products to 135 countries and regions. Recognized for continuous technological innovation, financial stability, and a well-established global sales and customer service network, JA Solar is highly regarded as a leading global manufacturer of high-performance PV products.

        WHAT IS THE PRODUCTION CAPACITY OF JA SOLAR MODULES?

        As of the end of 2022, JA Solar reported module orders totaling 25.47 GW, mainly comprising 182mm size. In January and February 2023, it had already shipped 6.7 GW. The module production capacity until the end of 2022 was close to 50 GW, with wafer and cell capacity roughly 80% of the module capacity.

        WHAT CURRENT CLASS IS JA SOLAR?

        JA Solar modules have been classified as Class A according to the IEC 61730-2 standard. For roof installations, modules should be mounted over a fire-resistant covering suitable for this application, with adequate ventilation between the modules' backsheet and the mounting surface.

        IS JA SOLAR TIER 1?

        Yes, JA Solar is classified as a Tier 1 solar panel manufacturer, joining the ranks of Jinko Solar, LONGi, Trina Solar, and Canadian Solar.

        WHAT ARE THE TIER 1 SOLAR PANELS?

        Tier 1 solar panels are crafted using the highest quality silicon. Higher silicon quality enhances the panel's effectiveness. Furthermore, Tier 1 manufacturers use advanced robotic methods to regulate the production process, reducing or eliminating human mistakes.

        HOW LONG DO TIER 1 SOLAR PANELS LAST?

        Tier 1 solar panels come with an industry-standard warranty of 25 years or longer. In reality, solar panels often last longer than that, with the warranty typically guaranteeing panels will work above 80% of their rated efficiency after 25 years.

        WHAT ARE MBB SOLAR PANELS?

        MBB stands for Multi Busbar, indicating that a solar cell is equipped with 12 or 16 busbars instead of 4, 5, or 6. This configuration results in a higher power output and greater reliability, with a power increase of approximately 2% to 2.5%.

        WHAT IS MBB HALF CELL MODULE?

        Assembled with multi-busbar PERC cells, the half-cell configuration offers advantages such as higher power output, better temperature-dependent performance, reduced shading effect on energy generation, a lower risk of hot spots, as well as enhanced tolerance for mechanical loading.

        WHAT IS THE EFFICIENCY OF JA SOLAR PANELS?

        The efficiency of JA Solar panels usually hovers between 21% and 23%, which is above average on the market. JA Solar engineers implement popular modern solar technologies, like half-cut cell construction, PERC cell technology, and busbars.

        ARE HALF-CELL SOLAR PANELS BETTER?

        Since half-cell modules produce more power and are more efficient and reliable than their full-cell counterparts, their use can lead to time and money savings for the installer. By delivering more power per square meter, fewer panels are required to generate the same power.

        View full details

        Elevate your hair care routine

        Experience our Red Light Therapy Cap a lightweight device created to support healthier-looking hair growth for both men and women. Designed for comfort, simple to wear, and suitable for everyday use

        Everyday Comfort

        Lightweight, breathable, and easy to wear throughout the day. Whether you’re at home, working, or relaxing, the Red Light Therapy Cap fits naturally into your routine. No complicated setup, just simple daily use.

        Proven Results

        Built to deliver consistent red light therapy, this cap supports healthier, fuller-looking hair with regular use. Many users notice reduced shedding and visible improvements in hair density over time. Designed for long-term consistency and everyday comfort

        Recommended by dermatologists and trichologists

        Recommended by dermatologists and trichologists

        Recommended by dermatologists and trichologists

        Recommended by dermatologists and trichologists

        Recommended by dermatologists and trichologists

        Recommended by dermatologists and trichologists

        Recommended by dermatologists and trichologists

        Recommended by dermatologists and trichologists

        Recommended by dermatologists and trichologists

        Recommended by dermatologists and trichologists

        Recommended by dermatologists and trichologists

        Recommended by dermatologists and trichologists

        Recommended by dermatologists and trichologists

        Recommended by dermatologists and trichologists

        Recommended by dermatologists and trichologists

        Recommended by dermatologists and trichologists

        Comparison table

        Discover why our RedCap™ delivers superior comfort, enhanced scalp coverage, and a design tailored for everyday wear.

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        Even laser distribution

        Lightweight and easy to wear

        Designed for everyday hair care

        How RedCap™ works?

        Red light therapy uses clinically studied wavelengths that penetrate the scalp and stimulate cellular activity around the hair follicle. This process supports microcirculation, improves oxygen delivery, and helps energise follicular cells through increased ATP production

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        Results

        90%

        Customers appreciate how effortless the Laser Cap makes daily use

        90%

        Many users value the lightweight feel and easy-to-follow routine

        90%

        Reported noticeable improvements to their overall hair care experience

        • ★★★★★

          Easy to use every day

          I’ve found it incredibly easy to fit into my daily routine. The cap feels comfortable, lightweight, and simple to use every evening

          — James, Manchester

        • ★★★★★

          Noticeably healthier-looking hair

          After a few weeks of consistent use, my hair looked noticeably healthier and my scalp felt much better overall

          — Daniel, London

        • ★★★★★

          Really works

          I appreciate how discreet and practical it is. I can wear it while working and it works suuuuper good

          — Sophie, Birmingham

          Trustpilot reviews

          Excellent 4.8 / 5

          • Coming back after 50 days to leave this review

            I wanted to wait before writing a review and after almost 50 days of using it, I can honestly say I’m very happy with my purchase. The RedCap really works and the quality has been great from day one. Ellen from customer support was also very helpful Really grateful and would definitely recommend it.

            Matthew B.

          • Exceeded my expectations

            I honestly didn’t expect the quality to be this good. The fit is perfect, the material feels premium and shipping was faster than expected. Definitely ordering again.

            James W.

          • Looks even better in person

            Very impressed with the design and comfort. I’ve already received compliments wearing it out in public. Feels high quality and worth every penny.

            Ethan P.

          • Customer service was amazing

            Had a small question about my order and got a reply really fast. Product arrived in perfect condition and the packaging was actually very nice. You can tell they care about the customer experience.

            Julian M.

          • Great quality for the price

            Was a bit skeptical before ordering but I’m glad I did. The material feels solid and the overall finish is really clean. Been using it almost every day since it arrived.

            Mirian L.