• Description

JA Solar JAM54S31-405/MR Solar Panel, 405W, MC4, 30mm Black Frame, Black Backsheet, 108 Half Cell Mono-PERC, 25A Fuse, 1500VDC, 378.3W PTC

JA Solar's JAM54S31-405/MR modules are powered by high-efficiency Mono-PERC cells and the 11 busbar design helps improve low light performance. The half-cell configuration of the JAM54S31-405/MR offers the advantages of higher power output, better temperature-dependent performance, reduced shading effect on the energy generation, lower risk of hot spot, as well as enhanced tolerance for mechanical loading. The S10 module dimensions are slightly larger than the previous S09 Series and they also have a mid-mounted, split J-Box technology. The all-black construction also offers a very nice aesthetic for any project.

Features

  • 20.7% efficient
  • Higher output power
  • 12-year product and 25-year linear power output warranty
  • Lower LCOE (Levelized Cost of Energy)
  • Better mechanical loading tolerance
  • Less shading impact and lower resistive loss

Founded in 2005, JA Solar is a manufacturer of high-performance photovoltaic products. With 12 manufacturing bases and more than 20 branches around the world, the company’s business covers silicon wafers, cells, modules and photovoltaic power stations. JA Solar products are available in 135 countries and regions and are used extensively in ground-mounted power plants, commercial & industrial rooftop PV systems and residential rooftop PV systems. With its advantages of continuous technological innovation, sound financial performance, and well-established global sales and service networks, JA Solar has been well received and highly recognized by clients from home and abroad. The company has been listed on Fortune China 500 and Global Top 500 New Energy Enterprises for several consecutive years.

  • 100 % electroluminescence inspection micro crack and hotspot free modules.
  • Axitec-Soft-Grip-Seam aluminum frame for higher stability and easier handling.
  • High quality junction box and connector system for a longer life time.
  • German/U.S. Engineered

Frequently Asked Questions

Yes! We provide free and fast shipping on MOST orders within the continental United States. However, some specific brands and items will require a quote. You can live chat or call us for a quote
Most orders ship out within 1–2 business days and arrive within 3–5 business days depending on your location.
We offer easy returns as long as your item meets the conditions outlined in our Return Policy. Items must be unused, in original packaging, and returned within the specified return window.
Absolutely! Our in-house product experts are here to help. Live chat or call us 513-743-829 for personalized advice before or after your purchase.
Yes. All products include any applicable manufacturer warranties, and we’ll help you handle any warranty claims if needed.
Yes, we only sell 100% authentic, brand-new products, sourced directly from our manufacturers or authorized distributors.
REAL REVIEWS, REAL RESULTS

Feedback From Our Customers

At Green Vista Living, we pride ourselves on delivering top-quality products and exceptional service to solar professionals and homeowners alike. Here's what our customers have to say about their experiences with us.

Kevin Leary
May 18, 2025
★★★★★

Incredible Tech Support from Anees of Green Vista Living. Exceptional service and went above and beyond on every question.

Bryan Cunningham
Off grid Kit • Dec 21, 2025
★★★★★

Shipment was slow due to high demand, but the team kept me informed and ensured everything arrived properly.

Related Products