Out of stock

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

price as of June 25
All Hanwha Q CELLS products All 340 Watt Panels


Rated Power Output 340 W
Voltage (VOC)40.66 V
Maximum String Voltage 1000V
Number of cells120
Cell TypeMonocrystalline
Rated Efficiency19.0 %
Connector TypeMC4 or MC4 compatible
Backsheet Colorwhite
Frame Colorblack
Dimensions LxWxH68.5 x 40.6 x 1.57 in
Weight47.2 lbs
ManufacturerHanwha Q CELLS
Manufacturer Part #Q.PEAKDUOBLKG6+AC
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.PEAK DUO BLK has been designed under the highest quality and aesthetics standards. These monocrystalline solar panels generate outstanding yields due to superior efficiency of 19.8% and a 340W power output rating. The Q.ANTUM DUO cell concept has been further improved and now comes with advanced electronic components and 6 busbars.

  • Power Output: 340 Watts
  • 120 Cell, Monocrystalline
  • 32 mm black frame, composite film backsheet
  • 1000 Volts Max Voltage

Low degradation rate

Anti LID Technology targets light induced degradation, vastly improving system performance. Compared to conventional monocrystalline cells that lose much of their initial capacity, Q.PEAK DUO BLK-G6 has a significantly lower degradation rate.

19% Superior Efficiency

This new Q CELLS model is a monocrystalline panel that converts sunlight into electricity with a 19% efficiency. What’s more, Anti LID Technology makes this efficiency long-lasting, tackling the threat of degradation.

A panel that will weather any storm

High-tech black aluminium frame is certified for high snow and wind loads. The model’s rear and front sides can handle 4,000 and 5,400 Pa loads respectively.

Performance Warranty

Low degradation over the next 25 years: the output decrease will be limited to 2% in the first 12 months and won’t go above 0.54% annually after that. After 25 years the panels will work at no less than 85% of nominal capacity. The manufacturer also offers a 12 year product warranty.


68.5 x 40.6 x 1.57 in


47.2 lbs

Reviews & Questions

  • Reviews (3)
  • Questions (3)
Awesome store, keep it up!
08/19/2021 03:34 pm
None of the fears I had about going solar came true. The store handled my order very professionally and they didn’t give me any surprises
Rene Duncan
07/30/2021 06:42 pm
Excellent build quality and impressive output. The modules are 50 ft away from the inverter and the system works great. Would recommend to a friend
Elliot Hussain
07/14/2021 07:46 am

Leave a review

Do you also provide installation services?
Mel Johnson
08/21/2021, 14:16
Unfortunately, no, we only sell the equipment.
What do they mean by ‘engineered in Germany’?
Daniel Riley
07/27/2021, 11:00
The company’s R&D department is located in Germany.
How long are the solar cables? Thank you
Jackie R.
07/15/2021, 08:23
The solar cables are 45.3in long.


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