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US made
Limited stock

JA Solar 595W Solar Panel 144 Cell Bifacial JA-JAM72-D40-595MB Assembled in the USA

$337.37
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(117 ratings)
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Minimum order – 10 panels

We have changed the number of solar panels to comply with shipping terms. More info

Customer reviews & Questions

Verified buyer reviews
Customer Reviews A1 SolarStore on trustpilot
  • Reviews (117)
  • Questions (4)
Brandon Scott
03/16/2026
USA-assembled winners! 595w consistent. Batteries fill fast
raj patel
03/16/2026
roof array good. wind held. bifacial bonus real
Samuel
03/16/2026
Outstanding bifacial tech. JA delivers
blake turner
03/16/2026
good for off-grid setups?
A1 SolarStore
Totally! High power output and bifacial gains make it ideal for off-grid homes or cabins needing max energy from limited space.
MARIO COSTA
11/07/2025
Does bifacial mean double the power?
A1 SolarStore
Not exactly double, but up to 30% extra from the rear side depending on surface reflection—like white gravel or snow. Front still leads with 595W.
Samuel Clark
07/28/2025
Can I use it on my roof or ground?
A1 SolarStore
Absolutely, its durable anodized aluminum frame handles both. Bifacial design shines on ground mounts where rear-side light reflection boosts output even more.
Carlos
05/10/2025
How much power does the JA-JAM72-D40-595MB put out
A1 SolarStore
Front side delivers a solid 595W, and being bifacial, it can gain up to 30% more from the rear—great for ground mounts or light-colored roofs.

Specification

Rated Power Output 595 W
Voltage (VOC)54.1 V
Maximum String Voltage 1500 V
Number of cells144 Cell
Technology
  • Bifacial
  • TOPCon
Cell TypeMonocrystalline
Rated Efficiency23.0 %
Connector TypeQC 4.10-351/MC4-EVO2
Frame ColorSilver Frame
Dimensions LxWxH89.72 x 44.65 x 1.38 in
Weight70.11 lbs
ManufacturerJA Solar
Manufacturer Part #JA-JAM72-D40-595MB
Operating Temperatures −40°F to +185°F
Scope of Application
  • Boats
  • Buildings
  • Home
  • RV
Use
  • Commercial
  • Grid-Tie
  • Off-Grid
  • Residential
Warranty12-year product warranty and 30-year linear power output warranty

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Attachments

FAQ

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%.
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

Close-wattage solar panels

10 products

About product

JA-JAM72-D40-595MB is a model that uses a number of technologies to bring durability and performance to the next level. The solar cells of JA-JAM72-D40-595MB are half the size of those found in standard panels. Major advantages include reduced power consumption, extended life, and enhanced efficiency in low-light conditions. Not surprisingly, the efficiency of this module is quite high – 23.0%. And while conventional panels absorb photons only on one side, bifacial modules absorb photons on both sides simultaneously. Thanks to the technology, this model can be up to 30% more efficient. JA Solar offers a 12-year product warranty and guarantees 87.40% of the original performance after 30 years of operation.

  • 595 W power output
  • 144 half-cut N-Type cells
  • 23.0% efficiency
  • 1500 V DC maximum system voltage
  • QC 4.10-351/MC4-EVO2 connectors
  • 12-year product warranty and 30-year linear power output warranty

More power and efficiency

An already high efficiency of 23.0% is further enhanced by N-Type cell technology. By adding a solid PID resistance and special glass lamination on top, the manufacturer ended up with an efficient and very durable model. Under standard test conditions, JA-JAM72-D40-595MB outputs 595 W of power.

Heat-resistant performance

This module makes the heat less dangerous since it has one of the lowest temperature coefficients in the market, losing just -0.29% of efficiency for every 1.8°F over 77°F.

High-quality standards

JA Solar's stringent production requirements include various tests to guarantee high quality. The facilities are highly automated, allowing the manufacturer to maintain high standards while keeping warranty claims to a minimum.

Low degradation for increased longevity

In the first year of service, these panels will lose no more than 1% of their power output. The average yearly power drop from the second to the 30th year will be no more than 0.4%. After 30 years, the modules will retain more than 87.40% of their initial output.

Certified for the worst environmental conditions

JA-JAM72-D40-595MB is PID, salt, acid, and ammonia resistant. It can also bear mechanical loads of up to 5400 Pa on the front and 2400 Pa on the back. This durability is mostly owing to the 1.38" thick anodized aluminum alloy frame and a layer of protective glass.

Size

89.72" x 44.65" x 1.38"

Weight

70.11 lb

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