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Q CELLS 405W Solar Panel 132 Cell Q.PEAK DUO BLK ML-G10+ Assembled in USA

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Minimum order – 10 panels

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

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All Hanwha Q CELLS products All 405 Watt Panels



Rated Power Output 405 W
Voltage (VOC)45.34 V
Maximum String Voltage 1000V
Number of cells132
Cell TypeMonocrystalline
Rated Efficiency20.6 %
Connector TypeMC4 or MC4 compatible
Backsheet Colorblack
Frame Colorblack
Dimensions LxWxH74 x 41.1 x 1.26 in
Weight48.5 lb
Pallet Qty32
ManufacturerHanwha Q CELLS
Manufacturer Part #Q.PEAKDUOBLKMLG10+405
Operating Temperatures −40°F to +185°F
Scope of Application
  • Solar Panels for Commercial
  • Solar Panels for Home
  • Commercial
  • Grid-Tie
  • Off-Grid
  • Residential
Warranty25 Year Product and Performance Warranty
Delivery Time 5-7 business days

About product

Q CELLS Q.PEAK DUO BLK ML-G10 405W is a PV module fit for both residential and commercial applications. Q CELLS engineers made the Q.PEAK DUO BLK ML-G10 series durable and efficient while minimizing the amount of useful space required for their operation. Q.ANTUM is an advanced technology developed by Q CELLS. The company employs a special no space layout to generate more electricity.

Another advantage is the half-cut cell technology. HQC-405MLQPG10-BK has solar cells half the size of those installed in conventional panels. The main benefits are decreased power loss, improved longevity and better low-light performance. Given its size and weight, Q CELLS Q.PEAK DUO BLK ML-G10 405W efficiency of 20.6% is quite impressive. Novel design solutions allow this panel to look as well as it performs. This model is just 1.26" in depth and is jet black with a sleek finish. The panel's functionality and durability are not affected by its aesthetic appeal though. Q CELLS offers 25 years of product warranty and guarantees 86% of original performance after 25 years of operation.

  • 132 half-cut Q.ANTUM cells
  • 405 W nameplate capacity
  • 20.6% efficiency
  • 1000 V DC maximum system voltage
  • MC4 or MC4-compatible connectors
  • 25 years of product and 25 years of performance warranty
  • Assembled in USA

Increased efficiency of up to 20.6%

Q CELLS Q.PEAK DUO BLK ML-G10 405W ensures maximum power production. 20.6 percent module efficiency is achieved using Q.ANTUM technology and a powerful antireflective coating. This is much greater than the norm, resulting in significant additional savings throughout the years of operation.

Keeping the cool in high temperatures

Q CELLS Q.PEAK DUO BLK ML-G10 405W manages to stay efficient even at high temperatures. For every 1.8°F above 77°F, it loses just -0.34% in efficiency, allowing you to make the most of the sunniest hours.

Quality and reliability

HQC-405MLQPG10-BK undergoes various quality checks during the production process and is subjected to serious quality and reliability testing. Manufacturing facilities are highly automated, removing the possibility of human errors. Q CELLS is committed to quality, safety, and dependability to ensure you get the finest.

Durability and degradation resistance

Q CELLS guarantees limited degradation over the ensuing 25 years. The performance will only degrade by a maximum of 2% the first year, and then only by a maximum of 0.50% yearly after that. After the 25 years are over, your modules will still show at least 86% of nominal capacity. A substantial 25-year product warranty is also included with this 405 W Q CELLS solar panel.

Enhanced frame design

This model's construction makes it perfect for both residential and business rooftops. Durability and strength are increased by using a strong, robust frame built from anodized aluminum. A significant snow load of up to 5400 Pa may be supported by the model. The panel's back can support 4000 Pa, assuring that even the strongest winds won't damage your system.

Stunning black aesthetics

The sleek, all-black aesthetics of the panel will complement any rooftop. By using a variety of treatments and selection criteria, the producer guarantees high quality cell color. Engineers at Q CELLS employ smaller gauge wires to link the cells together, creating a seamless appearance.


74" x 41.1" x 1.26"


48.5 lb

Reviews & Questions

  • Reviews (3)
  • Questions (1)
Please send Vic my thanks for a great recommendation
11/08/2023 08:49 am
an excellent panel, great output, even clouds arent a problem. the service was good, might come again soon
11/08/2023 08:49 am
I have a long history with qcells panels and i always thought that this one of the bets brands on the market. these panels are a proof of that. Highly recommended.
11/08/2023 08:49 am

Leave a review

Is this panels "Q cell 405W" assembled in USA 100% sure? and is this panel can use commercial project? Thanks.
Christopher Han
01/08/2024, 18:57
Yes, it's assembled in the US and can be used in a commercial installation.


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