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LONGi 375W Solar Panel 144 cell PERC Bifacial LR6-72HBD-375MC Commercial 572 panels per container (Truckload)

$0.23 /W
$87.75 /panel
Get commercial financing options at CleanFi
StarStarStarStarStar
(128 ratings)
Max1 CNTR
(572 pcs)
Minimum order – 572 panels

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

Container not included — price is for palletized solar panels only.

Customer reviews & Questions

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  • Reviews (128)
  • Questions
already survived a heavy hail season without damage, a solid, safe choice for any professional installer.
LONGi continues to be our go-to for reliability. We saw an immediate boost in energy harvest compared to our previous 330W modules.
Our solar installer recommended longi, and we ended up opting for them. They're beautiful, and I enjoy tracking my savings via the app. We saved quite a bit by purchasing here, A1 offered by far the best price for these panels.
they aren't the highest wattage available now but their long-term reliability is top-notch.
These panels are combination of great performance and great price. So glad I found them.
Good quality black panels real sturdy easy to wire up too. :)
The installation process was very smooth with these LONGi modules. The pallet was secured perfectly and arrived right on schedule. They are currently performing slightly above their rated specs in peak sun.
Solid performance for our recent farm shed project. The 360W rating is a sweet spot for the price point, especially when buying in bulk. The pallet arrived well-packed with no breakage or micro-cracks
Output matches datasheet to the watt geek approved
We bought these by the pallet for a multi-home development project. The consistent voltage across all panels made stringing them together very simple for our crew. No defects were found in the entire shipment.
Super efficient. Way better than our old panels.
Been running these for a while now, still putting out great numbers. Good value for a mature panel.
Output is killer My old panels look like toys now
Easy to install, lightweight, runs cool. Can’t ask for more
The modules were delivered very quickly. Great customer service as well. It was pleasure to do business with you.
power output close to spec but not over it otherwise good deal.
Backside doesn’t pick up as much light as I thought but still good panel overall.
No issues so far. Performance lives up to the spec sheet
Decent price for a 410 watt panel. Performs above my expectations.
All black design looks slick not flashy just clean energy good panel overall
Perfect for the ground-mount utility array we just finished. The HBD design is modern and handles environmental stressors much better than standard backsheets. Worth the extra investment for the bifacial energy boost.
we replaced our old 300W panels with these monsters and wow the difference is crazy
panels look good work good no drama.
LOVE these LONGi panels They look clean and perform even better than spec.
choosing the right solar panels was a daunting task for me. i had no idea where to start. your staff took the time to explain the differences between the various options and helped me make an informed decision. their advice was spot-on, and the panels are performing wonderfully. i'm so grateful for their assistance and will definitely be back for more!
one of the panel was broken but they replaced so it's all good
Wish they made silver frame but black still ok
A solar installer here. I used these to set up a 30-panel ground-mount array. Very easy to work with, well-built with high-quality materials.
panels got a nice design. thanks for quick responses and all the guidance. appreciate the pickup instructions.
one of the panel was broken but they replaced so it's all good
my initial attempt to get solar panels from another vendor was a nightmare. their communication was poor and the whole process was frustrating. your website is a game changer. everything went smoothly from ordering to delivery, and your staff was incredibly helpful. i can't thank you enough for such a positive experience. i will surely return for future needs.
choosing the right solar panels was a daunting task for me. i had no idea where to start. your staff took the time to explain the differences between the various options and helped me make an informed decision. their advice was spot-on, and the panels are performing wonderfully. i'm so grateful for their assistance and will definitely be back for more!
Using these in Texas sun and they hold up real good.
Can’t beat bifacial gains. LOVE the results
high wattage per panel = fewer rows needed. perfect
my initial attempt to get solar panels from another vendor was a nightmare. their communication was poor and the whole process was frustrating. your website is a game changer. everything went smoothly from ordering to delivery, and your staff was incredibly helpful. i can't thank you enough for such a positive experience. i will surely return for future needs.
Built a 500kW system on our farm with these Smooth install All working perfectly
Used 720 of these for a school install—production's been top-notch
wasnt sure about buyin a whole truck but glad i did. saved a ton
A bit heavy but solid quality. No regrets
Put up 30 of em on barn getting full 365 W on sunny days
Solid power output even on cloudy days, really happy with these
Sleek black finish looks sharp on my roof performance solid
I find these Longi 400's to be the best choice if you're looking for more efficiency and fair pricing. also, the pickup location was near ro my work, which was very pleasant.
Love these panels good price easy install
top notch product! the service was nice too. the lady was very polite and straight to the point
took a while to deliver but they are here and in very good shape. the power output is on point and i've not further complaints. we'll see how they do in the future
my initial attempt to get solar panels from another vendor was a nightmare. their communication was poor and the whole process was frustrating. your website is a game changer. everything went smoothly from ordering to delivery, and your staff was incredibly helpful. i can't thank you enough for such a positive experience. i will surely return for future needs.
panels got a nice design. thanks for quick responses and all the guidance. appreciate the pickup instructions.
top notch product! the service was nice too. the lady was very polite and straight to the point
Friends ordered at A1 so we chose them too. Picked panels ourselves, no cracks or any other problems
so glad we got these for our power system! the electricity bill is already 20% down
I find these Longi 400's to be the best choice if you're looking for more efficiency and fair pricing. also, the pickup location was near ro my work, which was very pleasant.
panels got a nice design. thanks for quick responses and all the guidance. appreciate the pickup instructions.
I find these Longi 400's to be the best choice if you're looking for more efficiency and fair pricing. also, the pickup location was near ro my work, which was very pleasant.
top notch product! the service was nice too. the lady was very polite and straight to the point
one of the panel was broken but they replaced so it's all good
choosing the right solar panels was a daunting task for me. i had no idea where to start. your staff took the time to explain the differences between the various options and helped me make an informed decision. their advice was spot-on, and the panels are performing wonderfully. i'm so grateful for their assistance and will definitely be back for more!
Very good service. The panels look good and are quite cheap. I wouldn’t say that they are anything special, but they do their job. Good performance even when there isn’t a lot of sunlight.
it’s been 6 month since i went off-grid with these panels. so far so good. tip: If you plan to do it, you need good batteries. just don’t buy them in advance like i did. i stored a battery in garage and didn’t use it and now it works much worse than others.
so glad we got these for our power system! the electricity bill is already 20% down
so glad we got these for our power system! the electricity bill is already 20% down
I contacted A1 Solar store to get help with the design and cost of a solar system for a medium size home completely off the grid. They put me in contact with one of their design. These guys were the best salesmen I have ever dealt with. They were so helpful, knowledgeable, accessible, and professional that I never even looked at another solar company. 
I just wanted to take a moment to express how wonderful my experience with your company was. 
Hi everyone,I just wanted to extend a big “thank you!” to your entire team. I am extremely pleased with my recent order and I can’t wait to get it installed. 
I bought these panels almost a year ago. Chinese ones are always cheaper, but their quality is all right to me. There was a huge tornado here in the end of the spring, winds were rough, but the panels surprisingly survived all that. I’m quite impressed, thx!
Our goal was to be able to remain in our home during the extended power outages after hurricanes strike our rural northern Florida area. Your company provides a high quality customer service. Keep up the great job.
Our goal was to be able to remain in our home during the extended power outages after hurricanes strike our rural northern Florida area. Your company provides a high quality customer service. Keep up the great job.
I contacted A1 Solar store to get help with the design and cost of a solar system for a medium size home completely off the grid. They put me in contact with one of their design. These guys were the best salesmen I have ever dealt with. They were so helpful, knowledgeable, accessible, and professional that I never even looked at another solar company. 
Thanks for your awesome customer service and technical support. I am so pleased with the products you sold me. 
Thank you very much for all your help. You have been very helpful and have always been there to answer my questions!
Thank you very much for all your help. You have been very helpful and have always been there to answer my questions!
I just wanted to take a moment to express how wonderful my experience with your company was. 
I just wanted to say thank you for the Longi 360W power system you sold me a couple of months ago.
Our solar installer recommended longi, and we ended up opting for them. They're beautiful, and I enjoy tracking my savings via the app. We saved quite a bit by purchasing here, A1 offered by far the best price for these panels.
Hi everyone,I just wanted to extend a big “thank you!” to your entire team. I am extremely pleased with my recent order and I can’t wait to get it installed. 
I just wanted to say thank you for the Longi 360W power system you sold me a couple of months ago.
You guys are great I enjoyed working with you and trust your service and will continue doing business in the future.
Thanks for your awesome customer service and technical support. I am so pleased with the products you sold me. 
You guys are great I enjoyed working with you and trust your service and will continue doing business in the future.
A solar installer here. I used these to set up a 30-panel ground-mount array. Very easy to work with, well-built with high-quality materials.
It’s nice to see that bifacial panels also made their way to the market. I think they are a great option and not only for commercial, but for home systems as well. longi panels are good, my friend has them for four years already.
got the package! everything’s fine, thank you!
We were looking for bifacial panels for quite a while and eventually settled on these ones. We’ve purchased a batch of those for our shop in California. The service was great, the delivery was on time. Performance is all right. Personally, I didn't like the design of panels too much, but it doesn’t affect the output, so it’s not a problem. Thank you very much. Donovan.
it’s been 6 month since i went off-grid with these panels. so far so good. tip: If you plan to do it, you need good batteries. just don’t buy them in advance like i did. i stored a battery in garage and didn’t use it and now it works much worse than others.
These panels are incredibly efficient. We use them on a farm to power all our gardening needs
I bought these panels almost a year ago. Chinese ones are always cheaper, but their quality is all right to me. There was a huge tornado here in the end of the spring, winds were rough, but the panels surprisingly survived all that. I’m quite impressed, thx!
I'm loving my PV modules by Longi. They generate enough power to use for my pond at night saving me some real money. The installation was pretty straightforward, thank you
Very good service. The panels look good and are quite cheap. I wouldn’t say that they are anything special, but they do their job. Good performance even when there isn’t a lot of sunlight.
30 year warranty was a bit of a surprise at this price point. This alone was enough for me to make a decision. A1 solar store didn’t make me regret it. They handled my order with utmost care and I got the panels on the 4th day.
The LONGi panels are robustly built and high quality. The modules were shipped without delay and arrived in excellent condition. I will return for more of them in the future when we decide to expand our PV system.
A lot of solar panels go through my hands. These modules are excellent and I would recommend them to a friend.
In total I now own twelve of these panels. On sunny days they manage to charge my battery bank by noon. If there are clouds in the sky, it takes longer, but not a great deal longer.
Hi everyone,I just wanted to extend a big “thank you!” to your entire team. I am extremely pleased with my recent order and I can’t wait to get it installed. 
It was a pleasure working with you on the installation of our home solar system. As homeowners doing the project ourselves, it was extremely helpful to have you on the other end of the phone line providing us with guidance and information needed to enable us to have a successful installation. We so appreciated your follow up, attention to detail and ability to answer our technical questions.
Just a short note to let you know that all components arrived last week in good shape. Appreciate your company doing business with a homeowner.
It has been a pleasure dealing with you guys. I'm gonna highly recommend you to anybody looking to go solar, looking for integrity and honesty in a tradesman.
When purchasing the system I was answered lots of questions and had a great help in the design of a new solar power system for our remote broadcast sites. I recommend this company highly.
Our goal was to be able to remain in our home during the extended power outages after hurricanes strike our rural northern Florida area. Your company provides a high quality customer service. Keep up the great job.
When I started looking for an off the grid power system for my cabin/garage in the north woods, I spent a lot of time shopping and browsing difference sites. I stopped shopping after calling Unbound Solar. I stopped because it was all about customer service! After speaking to their staff I could tell right away they wanted help me with my need, not what was the most expensive.There with a quick response to answer all my questions and needs.Customer service is everything!
Going solar has been a great experience. The sales staff was very professional. We have produced 59% of our power on average over the last 30 days and have only had 3 or 4 days of full sun. I can’t wait to see the results when the clouds move on. Our daily bill has reduced from $10.40 to $4.14 on the standard feed in of $0.08 . Great.
I just wanted to take a moment to express how wonderful my experience with your company was. 
Thank you very much for all your help. You have been very helpful and have always been there to answer my questions!
Thank you for the help with this. You have given me all the information I needed to design the proper system. I will contact you when we have acquired the funding for this project. You have the best prices from what i have researched so far and the customer service has been outstanding.
I would like to take this time to thank you for all your help before the sale and after getting me set up for what I needed. Your company was great to deal with.Thank You again. Please forward this to your company.
Thanks for your awesome customer service and technical support. I am so pleased with the products you sold me. 
Amazing service! I was completely inexperienced about buying and installing my own photovoltaic system but A1 Solar weas exactly what the doctor ordered at exactly the right time. These guys are not your typical online company.
Yes, we got it a few days ago. My electrician still needs to come and install it for us. Just telling my husband how great it is dealing with your company. I can sure appreciate all the help with the questions. we’ve had and your unbelievable service.
I contacted A1 Solar store to get help with the design and cost of a solar system for a medium size home completely off the grid. They put me in contact with one of their design. These guys were the best salesmen I have ever dealt with. They were so helpful, knowledgeable, accessible, and professional that I never even looked at another solar company. 
I just wanted to say thank you for the Longi 360W power system you sold me a couple of months ago.
Just a quick one to express our appreciation to you all.
You guys are great I enjoyed working with you and trust your service and will continue doing business in the future.
Thank you for the help with this. You have given me all the information I needed to design the proper system. I will contact you when we have acquired the funding for this project. You have the best prices from what i have researched so far and the customer service has been outstanding.
I want to express my appreciation for your technical support for getting my backup battery system operating last week. 
These black monocrystalline panels work perfectly for my needs, offered at great pricing, and look awesome on my roof.
LONGi solar panels are very durable and produce a lot of wattage for its size and cost compared to some other brands. I installed these solar modules on my RV and they work great. I highly recommend using these over the competitors.
I was repeatedly frustrated in my attempts to get a straight answer on cost, being told by many that they would have to come look at the place first. I was told that I wouldn’t be able to install it myself, despite having some electrical experience. So, I was absolutely delighted to speak with the guys from A1 Solar, who had a price for me within minutes, assured me that I could set it up myself with my electrical experience, and simply accepted my assessment of our electrical needs without offering unsolicited or condescending advice.
I would like to thank the whole team. I appreciate the work they've done.
We love our Longi solar panels. Since we installed them about 5 month ago they generated over 3 MWh and all of it mostly during winter months. Truly happy with the purchase.
These panels are very durable and perform well. Very competitively priced.
These panels are combination of great performance and great price. So glad I found them.
PERC mono cell modules that are highly efficient and cost effective. I could not find a better deal for my solar power system.
The modules were delivered very quickly. Great customer service as well. It was pleasure to do business with you.
No issues with my transaction. Shipping was fast, pricing was good and the panels are phenomenal. Also, I saved quite a bit of money shopping here.
Fast processing and delivery. I am very satisfied with A1Solar. Will definitely buy from you again. Thank you.
Very good, reliable panels. I have been very happy with the purchase and the performance of these modules so far.
The price was very affordable for these panels. They are sturdy and very efficient.
Have a question about LONGi 375W Solar Panel 144 cell PERC Bifacial LR6-72HBD-375MC Commercial 572 panels per...? Feel free to ask!

Specification

Rated Power Output 375 W
Voltage (VOC)48.3 V
Maximum String Voltage 1500 V
Number of cells144 Cell
Technology
  • Bifacial
  • PERC
Cell TypeMonocrystalline
Rated Efficiency18.6 %
Connector TypeMC4 compatible
Backsheet ColorSilver Backsheet
Frame ColorSilver Frame
Dimensions LxWxH79.53 x 39.21 x 1.57 in
Pallet dimensions LxWxH79.53 x 39.21 x 40.82 in
Weight58.42 lbs
Pallet Qty26
ManufacturerLONGi
Manufacturer Part #LR6-72HBD-375MC
Operating Temperatures −40°F to +185°F
Scope of Application
  • Buildings
  • Carports
  • Ground Mount
Use
  • Commercial
  • Grid-Tie
  • Off-Grid
  • Residential
Warranty10 year Product Workmanship Warranty / 30 year Linear Power Warranty

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About product

Among the newest offerings of LONGi, LR6-72HBD-375MC is part of the LR6-72HBD series. These panels use state-of-the-art technology to achieve high efficiency and dependability. The Passivated Emitter Rear Contact (PERC) technology ensures excellent power output. This solar cell type employs an additional reflective layer to absorb more sunlight.

The use of half-cut cell technology is an additional perk. The solar cells of LR6-72HBD-375MC 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. Given its size and weight, LR6-72HBD-375MC efficiency of 18.6% is quite impressive. 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. LONGi provides a 10-year product warranty. Stable power output is also guaranteed — performance warranty will protect you during 30 years.

  • 375 W power output
  • 144 half-cut PERC cells
  • 18.6% efficiency
  • 1500 V DC maximum system voltage
  • MC4 Compatible connectors
  • 10-year product and 30-year performance warranties

More power and efficiency

An already high efficiency of 18.6% is further enhanced by PERC 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, LR6-72HBD-375MC outputs 375 W of power.

Excellent performance in adverse weather

Low temperature coefficient means greater energy production at high operating temperatures. LR6-72HBD-375MC loses just -0.37% of efficiency for every 1.8°F above 77°F.

Quality and reliability

LR6-72HBD-375MC receives multiple quality checks throughout the manufacturing process and is subject to stringent quality and reliability testing. The manufacturing facilities are highly automated, eliminating the risk of human error. LONGi is dedicated to quality, safety and reliability to ensure you get the very best.

Reliability and degradation resistance

Slow degradation over the next 30 years is guaranteed by LONGi. The performance will decrease no more than 2% during the first year and 0.25% annually thereafter. Your modules will retain at least 84.95% of original performance after the 30 years are over. This 375 W LONGi solar panel also comes with a generous 10-year product warranty.

Improved frame design

LR6-72HBD-375MC design makes it suitable for both residential and business rooftops. The use of a strong 1.57" frame composed of anodized aluminum alloy boosts durability and strength. The model can withstand a significant snow load of up to 5400 Pa. The panel's back can withstand 2,400 Pa, guaranteeing that your system will resist even the fiercest winds.

Size

79.53" x 39.21" x 1.57"

Weight

58.42 lb

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