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JA Solar 440W Solar Panel 108 Cell N-Type Bifacial JAM54D41-440/MB Clearance

$195
$178.94
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Minimum order – 10 panels

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Customer reviews & Questions

Verified buyer reviews
Customer Reviews
  • Reviews (131)
  • Questions (6)
I’m happy with the panels they are making between 85 and 92% of their rated power. My only gripe is that A1 charged me a large credit card processing fee and a pallet breaking fee which was totally bogus as the pallet had already been broken. I have since bought more panels locally and didn’t have to pay these fees.
The panels represent a great $/watt price point. Ordering and pickup from A1 SolarStore was quick and painless
Overall, a solid purchase.Went with these ones because i'm planning a system in a field, a big one. the price was good. the purchase, the whole process - pretty straightforward. a very nice lady on the phone. Vic, the engineer, spoke my language. the delivery a bit late but that's alright.
Charlie Boyd
06/09/2026
Does the back side of the panel frame have pre drilled holes? I’m looking at a solar panel leg kit that is a lot easier to install when the panel has holes in the frame on the back. Thanks!
A1 SolarStore
Yes, JA Solar panels (including the 440W bifacial series) have pre-drilled mounting and grounding holes in the back flanges of their aluminum frames. You can use these factory-drilled holes to secure panel leg kits, rather than drilling new holes yourself
Dave
06/06/2026
does it have Anti-Reflective (AR) coatings or nano-textured glass?
A1 SolarStore
Anti-Reflective (AR) Coating: JA Solar panels use high-transmission, tempered glass that is coated on the front side with an anti-reflective layer. This coating is typically a nano-porous modified SiO₂ structur
Joe DeSimone
04/29/2026
I have a 900 watt 72 volt solar pool panel , they suggest 3- 400 watt panels , would 3 of these work for my pump?
A1 SolarStore
Yes will work.
logan roberts
06/19/2025
how do i clean it
A1 SolarStore
Simple: Hose it down gently every few months or rain does most work. Avoid abrasives; soft brush if bird stuff builds up. Keeps that bifacial magic flowing.
Ryan Lewis
06/08/2025
Best angle to install?
A1 SolarStore
For most US spots, tilt it to match your latitude—like 30-40 degrees in the south. Bifacial shines at 10-30 degrees with reflective surfaces below.
John
04/02/2025
Is it good for home solar setups?
A1 SolarStore
Absolutely. Perfect for rooftops or ground mounts in residential systems. Pairs well with most inverters we stock.

Attachments

Specification

Rated Power Output 440 W
Voltage (VOC)39.38 V
Maximum String Voltage 1500 V
Number of cells108 Cell
Technology
  • Bifacial
  • N-Type
Cell TypeMonocrystalline
Rated Efficiency22.5 %
Connector TypeQC 4.10-351/ MC4-EVO2
Frame ColorBlack Frame
Dimensions LxWxH67.8 × 44.6 × 1.18 in
Weight47.4 lbs
ManufacturerJA Solar
Pallet Qty36
Manufacturer Part #JAM54D41-440/MB
Operating Temperatures −40°F to +185°F
Scope of ApplicationBuildings
Use
  • Commercial
  • Grid-Tie
  • Off-Grid
  • Residential
Warranty25-year product warranty / 30-year performance warranty

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About product

JA Solar JA-JAM54-D41-440MB is a PV module fit for both residential and commercial applications. JA Solar engineers made the Black series durable and efficient while minimizing the amount of useful space required for their operation. The N-Type technology ensures excellent power output.

The use of half-cut cell technology is an additional perk. The solar cells of JA-JAM54-D41-440MB 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. The efficiency of this model reaches 22.5% — well above the market’s average. And while conventional panels use only one side to absorb photons, bifacial modules employ both sides at the same time. Thanks to the technology, this model can be up to 30% more efficient. Cell surface, back foil and frame are completely black, giving the model unrivaled aesthetics. JA Solar provides 25 years of product warranty and guarantees that after 30 years, performance will be at 87.4% or more.

  • 440 W power output
  • 108 half-cut N-Type cells
  • 22.5% efficiency
  • 1500 V DC maximum system voltage
  • QC 4.10-351/ MC4-EVO2 connectors
  • 25-year product and 30-year performance warranties

High productivity thanks to the most recent developments

This JA Solar panel produces 440 W of power at 22.5 percent efficiency. High levels of energy output are reached by utilizing the most recent innovations in the solar sector. A more efficient panel produces more per square foot and pays for itself sooner.

Exceptional performance in scorching weather

At high working temperatures, a low temperature coefficient equals increased energy generation. Every 1.8°F over 77°F results in a model's efficiency loss of just -0.29 percent.

Quality and reliability

JA-JAM54-D41-440MB is subject to rigorous quality and reliability testing as well as many quality checks throughout the production process. The level of automation in the manufacturing facilities virtually eliminates human error. To guarantee that you receive the finest, REC is committed to quality, safety and dependability.

Reliability and degradation resistance

Slow degradation over the next 30 years is guaranteed by JA Solar. The performance will decrease no more than 2% during the first year and 0.25% annually thereafter. Your modules will retain at least 87.4% of original performance after the 30 years are over. This 440 W JA Solar solar panel also comes with a generous 25-year product warranty.

Certified for the most challenging environmental conditions

JA-JAM54-D41-440MB is resistant to PID, salt, acid and ammonia. It can also withstand up to 5400 Pa mechanical load on the front and 3000 Pa on the back. Such robustness is mainly due to the 1.18" thick Black anodised aluminium frame and a layer of protective glass.

Outstanding all-black design

The panel has a sleek, all-black style that complements any roof beautifully. JA Solar uses unique treatment and selection procedures to guarantee optimum cell color. The cells are connected by thinner wires, and from a distance, the surface of the modules seems seamless and smooth.

Size

67.8" x 44.6" x 1.18"

Weight

47.4 lb

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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

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