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Trina 390W Solar Panel 120 Cell TSM-390-DE09C07

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All Trina Solar products All 390 Watt Panels



Rated Power Output 390 W
Voltage (VOC)40.8
Maximum String Voltage 1500V
Cell number
  • 120 cell
Cell TypeMonocrystalline
Rated Efficiency20.3 %
Connector TypeMC4
Frame Color
  • black
Dimensions LxWxH69.06 × 43.15 × 1.18 in
Weight46.3 lb
Pallet Qty36
ManufacturerTrina Solar
Manufacturer Part #TRI-TSM-390-DE09C07
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

TSM DE09 C07 is part of the Vertex S Series — one of the most recent made by Trina Solar. These panels employ cutting-edge technologies to achieve superior efficiency and reliability. This panel takes full advantage of the Passivated Emitter Rear Contact (PERC) technology that allows it to capture up to 12% more energy. All thanks to a reflective layer on the back. This design maximizes the number of photons absorbed by solar cells. 

Half-cut cell technology adds a few more percent to the overall performance, making this model a great example of efficiency. Trina Solar made solar cells in TSM DE09 C07 two times smaller than the standard size, thus reducing power loss and improving low-light behavior. As a result, the panel achieves an impressive efficiency of 20.3%. 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. Cell surface, back foil and frame are completely black, giving the model unrivaled aesthetics. Trina Solar provides a 25-year product warranty. Stable power output is also guaranteed — performance warranty will protect you during 25 years. 

  • 390 W power output
  • 120 half-cut PERC cells
  • 20.3% efficiency
  • 1500 V DC maximum system voltage
  • MC4 connectors
  • 25-year product and 25-year performance warranties

More power and efficiency

An already high efficiency of 20.3% is further enhanced by PERC technology. By adding a solid PID resistance and special glass lamination on top, the manufacturer ended up with an efficient and very durable model. Under standard test conditions, TSM DE09 C07 outputs 390 W of power.

Improved efficiency at high temperatures

Greater energy as temperature rises is a mark of a good temperature coefficient. Your panel's efficiency will drop by just 0.34% for every 1.8°F increase over 77°F.

Quality and reliability

TSM DE09 C07 is subject to rigorous quality and reliability testing as well as many quality checks throughout the production process. The level of automation in the manufacturing facilities virtually eliminates human error. To guarantee that you receive the finest, REC is committed to quality, safety and dependability.

Low degradation for increased lifespan

The amount of power output loss experienced by these panels during the first year of operation will not exceed 2%. The average yearly power drop from the second to the 25th year will not surpass 0.55%. After 25 years, the module will still produce more than 84.8% of its initial output.

Improved frame design

TSM DE09 C07 design makes it suitable for both residential and business rooftops. The use of a strong 1.18" frame composed of anodized aluminum boosts durability and strength. The model can withstand a significant snow load of up to 6000 Pa. The panel's back can withstand 4000 Pa, guaranteeing that your system will resist even the fiercest winds.

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 Trina Solar employ smaller gauge wires to link the cells together, creating a seamless appearance.


69.06" x 43.15" x 1.18"


46.3 lb

Reviews & Questions

  • Reviews (3)
  • Questions (3)
Product of the highest quality standards; very functional; constructed to endure. A1Solar did their job above and beyond. Quick feedback, fast deliveries and good prices.
12/19/2022 03:51 am
Even if it isn't the most efficient option, it's not far off, and the cost to go with the most efficient one is just not worth it. Also, Trina warranties are awesome.
Charles Fennescey
12/18/2022 01:48 am
In the past, I have used solar panels to power RVs and trailers. As soon as I had these Trina panels set up, I could see they were far more powerful than my old ones. Forget the other options, and go with Trina.
Anthony Sumsuma
12/17/2022 07:42 am

Leave a review

How much do you charge for shipping?
12/19/2022, 07:38
Shipping starts at $250 for up to 8 solar panels, and goes up by $25 with every 4 modules on top of that. Some panels qualify for free shipping when ordering over 10 items.
Hi, Can you steer me toward some other components for an offgrid (cabin) situation, that will work well with your panels: charge regulator and inverter, connectors, cable, anything else I need?
12/18/2022, 16:53
This is too vast a topic to tackle it in a short reply. But we have written a number of articles on it. Click "Magazine" at the very top of our website. We also sell entire systems that already include everything you may need. To browse them, please click on "Systems" at the very top of this page.
Is this solar panel compatible with a 1400 Lithium Battery?
12/16/2022, 06:47
Normally, panels do not interact directly with the battery. They do so via a charge controller, which may or may not be compatible with a certain type of battery. However, the majority of controllers do support lithium batteries.