Out of stock

Q CELLS 320W Solar Panel 120 cells Q.PEAK DUO G7

price as of July 20
All Hanwha Q CELLS products All 320 Watt Panels


Rated Power Output 320 W
Voltage (VOC)40.1V
Number of cells120
Cell TypeMonocrystalline
Rated Efficiency19.0 %
Connector TypeMC4 or MC4 compatible
Backsheet Colorwhite
Frame Colorblack
Dimensions LxWxH66.3” x 39.4” x 1.26”
Weight41.2 lbs
ManufacturerHanwha Q CELLS
Manufacturer Part #Q.PeakDUOG7320
Operating Temperatures -40 °F to +185 °F
Scope of Application
  • Solar Panels for Boats
  • Solar Panels for Commercial
  • Solar Panels for Home
  • Solar Panels for RV
  • Grid-Tie
  • Off-Grid
Warranty20/25 Years See warranty details
Delivery Time 5-7 business days

About product

Q CELLS Q.Peak DUO G7 320w is a 120 cell monocrystalline half-cut module. This panel features impressive efficiency and strength bringing a great performance that you can count on even in shaded areas. Ideal for residential and commercial installations, the Q CELLS solar panel has a black frame and white backsheet with a thin frame for a sleek elegant appearance on your home.

  • 320W Power Output
  • 120 Cell, Monocrystalline 
  • 19% Module Efficiency
  • 1000 Volts Max Voltage
  • Innovative all-weather technology
  • MC4 connectors
  • Anodized aluminum frame
  • Black frame, White backsheet

19% Efficiency

Q.Peak DUO G7 320W Solar Panel features 19% efficiency. Thanks to the use of high-quality materials and quality checking, this Q Cells module endures high performance throughout the lifetime. 

Quality and Reliability

Q CELLS Products undergo the Extended Stress Test which tests the panels in 40 individual tests for maximum confidence and quality in a product. Not only do the panels have an extreme weather rating certified for snow loads up to 5,400 Pa and wind loads up to 4,000 Pa, they also have hot-spot protection all to ensure you receive a reliable high-quality product.

Low Degradation rates

Designed to stay efficient through its lifetime, the Q.Peak DUO G7 320w solar panel has a low degradation rate of only 0.54% a year. This reliable module will maintain its high performance through year  25 retaining 85% of its initial power output.

20 Year Product and 25 Year Performance Warranty

Q.Peak DUO G7 320w Solar Panel comes with an exclusive 12-year product and  25-year linear performance warranty. 


66.3” x 39.4” x 1.26”


41.2 lbs

Reviews & Questions

  • Reviews (3)
  • Questions (3)
The quality for the price is ok thanks A1 solar
09/02/2021 09:42 am
Got these panels installed as soon as my delivery came they look great on my roof
08/18/2021 07:11 pm
Even though these panels are more affordable than other brands I am not disappointed with the efficiency so far they have been running smooth
08/06/2021 09:40 am

Leave a review

What side of my roof should I install my panels on?
09/05/2021, 11:18
To receive the most direct sunlight it is recommended to install your panels facing south.
Does the installation come with my solar panel order?
08/21/2021, 08:14
No, we don’t provide installation service.
How do these panels perform in hot temperatures?
08/12/2021, 09:43
Q CELLS puts their products through 600 cycles of extreme temperature changes ranging from -40 °C to +85 °C within 15 weeks. This intensive temperature test guarantees their product is to serve efficiently in hot or cold temperatures.


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