Out of stock

JA Solar 405w Solar Panel 144 Cell JA-JAM72-S10-405MR

price as of May 21
Solar Loan from 6.99%
All JA Solar products All 405 Watt Panels


Rated Power Output 405 W
Voltage (VOC)49.86V
Number of cells144
Cell TypeMonocrystalline
Rated Efficiency20.2%
Connector TypeMC4 or MC4 compatible
Backsheet Colorwhite
Frame Colorsilver
Dimensions LxWxH78.3 x 40 x 1.57 in
Weight49.92 lbs
ManufacturerJA Solar
Manufacturer Part #JA-JAM72-S10-405MR
Operating Temperatures -40 °F to +185 °F
Scope of Application
  • Solar Panels for Boats
  • Solar Panels for Commercial
  • Solar Panels for Home
  • Solar Panels for RV
  • Grid-Tie
  • Off-Grid
Warranty12-year warranty extendable 25 years
Delivery Time 5-7 business days

About product

JA Solar 405w S10 Mono PERC 72-cell module. 9 BusBar, Square cut JA cells, 40mm Silver Frame, White back sheet, Genuine 1500V MC4 Connectors

JA Solar's S10 Series modules are powered by high-efficiency PERCIUM mono cells. These modules include five busbar cell design, which improves low light performance. S10 module dimensions are slightly larger than the previous S09 Series and has mid mounted split J-Box technology. Built with MC4 Connectors rated for 1500V DC, module rated for 20A Max Series Fuse.

This product is supplied with MC4 connectors.

High Efficiency at High Temperatures

This model provides a high potential at a high energy yield at low NOCT = 45°C ( ±2°C).

Quality and Reliability

  • Higher Output Power
  • Lower LCOE
  • Less Shading and Lower Resistive Loss
  • Better Mechanical Loading Tolerance

Superior Warranty

This model provides 12-year product warranty and 25-year linear power output warranty.

Product details

  • Power Output: 405 Watts
  • 144 Cell, Monocrystalline
  • 1500 Volts Max Voltage
  • Manufacturer Warranty: 12 Years
  • Performance Warranty: 25
  • Shipping Weight: 49.92 lb
  • Shipping Dimensions: 78.3 x 40 x 1.57 in
  • Pallet Qty: 27

Reviews & Questions

  • Reviews (4)
  • Questions (1)
Thanks, Carey Stockwell for a1solarstore.com
Carey Stockwell
06/27/2021 04:14 pm
This morning my order arrived. The skid was undamaged and the order was complete. I sincerely look forward to working with you again in the future and will not hesitate to recommend you guys to anyone and everyone! Thank you for taking good care of me!
11/18/2020 12:41 pm
I want to thank you for taking the time to work with me in getting a solution to my shipping issue. I do appreciate it very much and I want to let you know that you are a great asset to your company.
11/18/2020 10:15 am
t is with great pleasure to comment on the service and quality of your products. From the beginning of my project to the completion I am 100% satisfied with the help received and educational advise. Please feel free to use us as a reference.
11/07/2020 12:42 pm

Leave a review

Do your panels come with mounting brackets?
05/09/2021, 21:37
NO. Its just a panel.


How much is shipping and how long is delivery?
Our standard shipping charge is $250 for up to 11 panels and it is increased by $25 for every 4 additional panels. In the event, the product is only available on East or West coast custom quote will be sent to you before the order is processed. Normally, we are able to deliver solar panels within 7 business days.
What is the difference between low price panels and top price panels?
With top tier solar panels, you pay for the brand name, proprietary new technology, higher energy output, and better warranty support.
What are the dimensions of the panel?
Please refer to the product datasheet on the product page. We have a datasheet for every product we sell.
How long is the warranty on the panel?
In general, manufacturers provide a 25 year-long performance warranty and a 10 year-long equipment guarantee. Some manufacturers offer 12-15 years of warranty. More information is available in our warranty support section.
Which panels do you recommend for RV, marine?
We recommend Panasonic and Mission Solar panels for smaller systems as their high energy output and excellent craftsmanship guarantee years of service.
Can this panel be used with a 12v system?
Any of our panels can be used for a 12v system with a properly selected inverter and charge controller.
Can I pick up this panel from your fulfillment center to save on shipping?
Yes, we can set up a pick up at a local distributor. Please call to discuss options and stock availability.
How do I connect these panels?
To achieve the best system efficiency, panels should be connected in series to create higher voltage.
How many panels do I need?
This number is determined by your average energy needs. Depending on the type of panels and energy consumption, you might need anywhere from 12 to 45 solar panels. Remember, the more panels you install the more energy you will get.Please use our solar calculator to estimate your energy consumption and plan on building a solar system that will exceed your energy needs by 25%.
Do you offer discounts?
We do offer discounts for orders of over 50 units. Please contact us for details.
How do I build a solar system?
Please use our solar calculator to estimate what equipment you need. Choose your panels, microinverters, inverters, and solar batteries if necessary.Please note that we do not offer solar system design or installation.
How do solar panels compare?
Solar panels differ by power output, voltage, connection type, size, efficiency, and weight. Some solar panels might be sold together with microinverters as a set.
Can I build a solar system by myself as a Do It Yourself project?
Yes, it is possible if you understand what solar equipment you need and how to connect it together. However, please be mindful that handling your own electrical work without having proper experience might cause life-threatening injuries. Please contact a certified electrician if you do not possess appropriate electrical skills.
Can I connect and charge my solar panel battery directly with the solar panel?
We do not recommend using the solar panel without the charge controller. Using solar panels without the charge controller might damage the batteries.
Can I drill holes into the aluminum frame for mounting?
We do not recommend drilling any new holes to the aluminum frame of the panel as it could damage the internal circuit and solar cells. (Also, any modification to the panel will void the warranty). We recommend only using the pre-drilled holes for mounting.
Do solar panels require maintenance? Can I wash my solar panel?
Solar panels generally require very little maintenance. We recommend cleaning the solar panel with water, glass cleaner (Windex) and microfiber cloth.
Will my panel produce power in an overcast condition?
While solar panels require sunlight to generate solar energy, they will still work in cloudy weather. Even on a cloudy day, solar panels will produce energy just not as much.
Will my panels produce power if covered with snow?
Solar panels cannot produce electricity if covered with snow.
What is the best direction for a solar panel to face?
The best direction for a solar panel to face is the South