In stock

Trina 385W Solar Panel 144 Cell TSM-DE14H(II)-385 Wholesale 27 panels per pallet

$0.24 /pw
$92.60 /panel
(2)
1 PLT
(27 pcs)
Minimum order – 27 panels

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

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Your ZIP Code 33071
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All Trina Solar products All 385 Watt Panels

Attachments

Specification

Length78.74in
Width39.06in
Rated Power Output 385 W
Voltage (VOC)48.5V
Maximum String Voltage 1500V
Number of cells144
Cell TypeMonocrystalline
Rated Efficiency19.4%
Connector TypeTS4
Frame Colorsilver
Dimensions LxWxH78.74 x 39.06 x 1.57 in
Weight50.7lbs
Pallet Qty27
ManufacturerTrina Solar
Manufacturer Part #TSM-DE14H(II)-385
Operating Temperatures −40°F to +185°F
Scope of ApplicationSolar Panels for Home
Use
  • Commercial
  • Grid-Tie
  • Off-Grid
  • Residential
Warranty10 Year Product Warranty / 25 Year Linear Power Warranty
Delivery Time 5-7 Business Days

About product

TSM-DE14H(II)-385 is part of the TSM-DE14H(II) 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.

To further boost the performance, Trina Solar employs half-cut cell technology. Each of the panel’s 144 cells is only half the size of a traditional solar cell. This grants TSM-DE14H(II)-385 lower resistive losses and better shade tolerance. Given its size and weight, TSM-DE14H(II)-385 efficiency of 19.4% is quite impressive. Trina Solar provides 10 years of product warranty and guarantees that after 25 years, performance will be at 80.2% or more.

  • 385 W power output
  • 144 half-cut PERC cells
  • 19.4% efficiency
  • 1500 V DC maximum system voltage
  • TS4 connectors
  • 10-year product and 25-year performance warranties

High efficiency of 19.4 percent

Trina Solar TSM-DE14H(II) panels fully use the firm's innovations, which Trina Solar has received several distinctions for. With PERC technology, more electricity can be produced per square foot of PV modules. As a result, there will be less clamps and racks required during installation. All of which lowers your overall expenses and accelerates the payback period.

Improved performance at hot temperatures

A high temperature coefficient translates to more energy as the temperature rises. Every 1.8°F increase over 77°F reduces the efficiency of your panel by just -0.37%.

High quality standards

Multiple tests are part of the Trina Solar tight production requirements, which offer the highest level of quality assurance. Because of the facilities' high degree of automation, the business is able to uphold strict standards and minimize the number of warranty claims to an absolute minimum.

Reliability and degradation resistance

Trina Solar guarantees slow deterioration over the next 25 years. The performance will decline by no more than 3% during the first year and then by no more than 0.7% every year after that. After the 25 years are over, your modules will retain at least 80.2% of their original performance. This 385 W Trina Solar solar panel also comes with a substantial 10-year product warranty.

A panel that can handle hail, wind and snow

This module is weatherproof due to the 1.57" frame manufactured from anodized aluminum alloy and a layer of safety tempered glass. The modules' front and rear sides can withstand loads of 5400 and 2400 Pa, respectively.

Size

78.74" x 39.06" x 1.57"

Weight

50.7 lb

Reviews & Questions

  • Reviews (2)
  • Questions (4)
Survived -30 °F snap freeze in Minnesota so yeah they’re tough
Dave W.
12/27/2024 03:44 pm
Half-cut cells really do help shade lost a tree limb last week barely saw a dip
Sara T.
10/30/2024 05:09 pm

Leave a review

are frames anodized aluminum?
Ivana D.
06/28/2025, 13:35
A1 SolarStore
Yes — clear anodized aluminum frames for corrosion resistance and strength.
How they do in shade?
Hector R.
05/30/2025, 10:08
A1 SolarStore
Half-cut cell strings minimize shade loss, so light dappled shade knocks down output far less than on full-cell modules.
these got half-cut cells right
Sara T.
01/20/2025, 15:03
A1 SolarStore
Yes, 144 half-cut mono PERC cells for lower resistive loss and better shade tolerance.
can this panel handle 1500v system
Chuck D.
11/22/2024, 16:45
A1 SolarStore
Yes, it’s certified for 1,500V max system voltage, so it plays nicely with modern high-string inverters.

FAQ

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%.
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