0
= 36
In stock

LONGi Solar 615W Solar Panel 132 Cell Bifacial LR8-66HGD-615M Wholesale 36 panels per pallet

$0.20 /pw
$119.93 /panel
(59 ratings)
1 PLT
(36 pcs)
Minimum order – 36 panels

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

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Customer reviews & Questions

Verified buyer reviews
Customer Reviews
  • Reviews (59)
  • Questions (4)
USER.2025
05/25/2025
Output is killer My old panels look like toys now
BRUCE WAYNE
03/22/2025
No issues so far. Performance lives up to the spec sheet
césar
07/10/2025
will they work in texas heat?
A1 SolarStore
Yes — they perform well even in high temperatures thanks to low thermal coefficients.
NATALIA ROMANOVA
05/06/2025
Do they have UL certification
A1 SolarStore
Yes, they are UL certified for use in the U.S. and meet international standards.
lee
01/10/2025
they mono or poly
A1 SolarStore
They're monocrystalline, which means higher efficiency and a sleek look.
LISA
09/05/2024
Can I use these panels for my house ?
A1 SolarStore
Yes, absolutely! They're great for residential, commercial, or utility-scale projects.

Specification

Length93.78in
Width44.65in
Rated Power Output 615 W
Voltage (VOC)48.58V
Maximum String Voltage 1500V
Number of cells132
Cell TypeMonocrystalline
Rated Efficiency22.8%
Connector TypeMC4
Frame Colorsilver
Dimensions LxWxH93.78 x 44.65 x 1.18 in
Weight73.85lbs
Pallet Qty36
ManufacturerLONGi
Manufacturer Part #LR8-66HGD-615M
Operating Temperatures −40°F to +185°F
Scope of ApplicationSolar Panels for Buildings
Use
  • Commercial
  • Grid-Tie
  • Off-Grid
  • Residential
Warranty12-year warranty for materials and processing and 30-year warranty for extra linear power output
Delivery Time 5-7 Business Days

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

About product

LONGi LR8-66HGD-615M is a PV module fit for both residential and commercial applications. LONGi engineers made the LR8-66HGD 595~625M series durable and efficient while minimizing the amount of useful space required for their operation. The advanced HPDC cell technology ensures excellent power output.

Half-cut cell technology adds a few more percent to the overall performance, making this model a great example of efficiency. LONGi made solar cells in LR8-66HGD-615M two times smaller than the standard size, thus reducing power loss and improving low-light behavior. Not surprisingly, the efficiency of this module is quite high – 22.8%. 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 12-year warranty for material and processing and guarantees that after 30 years, performance will be at 87.4% or more.

  • 132 half-cut HPDC cells
  • 615 W nameplate capacity
  • 22.8% efficiency
  • 1500 V DC maximum system voltage
  • MC4 connectors
  • 12-year warranty for material and processing and 30-year warranty for extra linear power output

Increased power and efficiency

Advanced HPDC cell technology improves on an already high efficiency of 22.8 percent. The manufacturer created an efficient and highly durable model by adding a robust PID resistance and unique glass lamination on top. LR8-66HGD-615M produces 615 W of power under standard test conditions.

Keeping cool in hot weather

Even at high temperatures, LR8-66HGD-615M remains efficient. It loses just -0.28% efficiency for every 1.8°F over 77°F, letting you make the most of the sunniest hours.

High quality standards

LONGi strict manufacturing standards include multiple tests to provide extreme quality assurance. The facilities are highly automated, allowing the company to maintain high standards and keep the level of warranty claims very low.

Low degradation for increased lifespan

The amount of power output loss experienced by these panels during the first year of operation will not exceed 1%. The average yearly power drop from the second to the 30th year will not surpass 0.4%. After 30 years, the module will still produce more than 87.4% of its initial output.

Certified for the worst environmental conditions

LR8-66HGD-615M 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 1.18" thick anodized aluminum alloy frame and a layer of protective glass.

Size

93.78" x 44.65" x 1.18"

Weight

73.85 lb