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Q CELLS DUO 340W Solar Panel 120 cells BLK G6+

price as of September 04
All Hanwha Q CELLS products All 340 Watt Panels


Rated Power Output 340 W
Voltage (VOC)40.66V
Maximum String Voltage 1000V
Cell number
  • 120 cell
Cell TypeMonocrystalline
Rated Efficiency19%
Connector TypeMC4 or MC4 comparable
Backsheet Color
  • black
Frame Color
  • black
Dimensions LxWxH68.5 × 40.6 × 1.26in
Weight43.9 lbs
ManufacturerHanwha Q CELLS
Manufacturer Part #BLKG6+
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
Warranty12-year warranty extendable 25 years
Delivery Time 5-7 business days

About product

Q CELLS Q.PEAK DUO 340W Solar Panel 120 cellsBLK G6

Q.PEAK DUO BLK solar modules have been developed for use on truly exclusive buildings. Monocrystalline solar modules of the Q.PEAK DUO BLK family are also distinguished by outstanding yields thanks to power classes of up to 350 Wp and efficiencies of up to 19.8 %. A new generation of the unrivalled Q.ANTUM DUO cell concept, which is now combined with state-of-the-art circuitry and 6-busbar cell design, makes these tremendous values possible.

The Q CELLS Anti LID Technology eliminates light induced degradation (LID), which can greatly reduce system performance, almost completely. Other conventional monocrystalline solar cells will lose much of their initial performance, once exposed to sunlight. With Q.PEAK DUO BLK-G6 this is not the case, thanks to Anti LID Technology.

This model is ideal solution for:

  • Rooftop arrays on residential buildings
  • Rooftop arrays on commercial / industrial buildings

Higher Efficiency

The new Q CELLS Q.PEAK DUO-G6 340W Solar Panel is a monocrystalline solar module with power classes up to 340 Wp and an efficiency of 19%.

High Performance

Long-term yield security for your Q CELLS solar panels with Anti LID Technology, Anti PID Technology, Hot-Spot Protect and Traceable Quality Tra.Q™.

Quality and Reliability

High-tech aluminium alloy frame, certified for high snow (5400 Pa) and wind loads (4000 Pa) regarding IEC.

Performance Warranty

Inclusive 12-year product warranty and 25-year linear performance warranty.

Product Details:

  • Monocrystalline 
  • Power output: 340 W
  • Shipping weight: 54lb
  • Shipping dimensions: 1740mm × 1030mm × 32mm (including frame)
  • Frame: Black anodised aluminium
  • Connector Type: MC4

Reviews & Questions

  • Reviews (2)
  • Questions (5)
It was the first time I bought solar panels, and I needed some advice. Guys from A1 recommended this panel for my needs. So far so good
12/01/2020 02:07 pm
The delivery was fast, the panels arrived a couple of days ago. Looks like they are the right thing for me. Thnx
09/18/2020 10:42 pm

Leave a review

Hi, it is said that panels perform well in cloudy weather, but how well exactly?
07/13/2021, 13:44
Let’s say, on a good sunny day the irradiance is around 1000 W/m2. The performance of a panel falls down to 90-95% when the irradiance declines below 300 W/m2
Are there any discounts on shipping?
06/11/2021, 21:10
First of all, the more modules you buy, the less the shipping costs. Second, you can pick panels from one of our warehouses and don’t pay for the shipping at all.
I can’t install panels on my roof. Are there any other installation options?
05/21/2021, 16:19
You can install panels on the ground. The installation is much cheaper this way, but they take up space and are more susceptible to shading problems.
I heard solar panels are good at surviving hurricanes and tornadoes. Is it true?
04/17/2021, 13:07
Yes, panels withstand harsh weather and natural disasters well. This model can handle the pressure of 5400 Pa.
Do you provide installation services?
12/02/2020, 13:50
No, you have to find a professional installer to do the job.


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