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Trina 480W Solar Panel 252 cell Bifacial TSM-480DEG15VC.20(II) Wholesale

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Rated Power Output 480 W
Voltage (VOC)43.3 V
Maximum String Voltage 1500V
Number of cells252
Cell TypeMonocrystalline
Rated Efficiency20.4%
Connector TypeMC4
Frame Colorsilver
Dimensions LxWxH91.14 × 40 × 1.38 in
Weight66.1 lb
Pallet Qty31
ManufacturerTrina Solar
Manufacturer Part #TSM-480DEG15VC.20(II)
Operating Temperatures −40°F to +185°F
Scope of Application
  • Solar Panels for Commercial
  • Solar Panels for Home
  • Commercial
  • Grid-Tie
  • Off-Grid
  • Residential
Warranty12/ 30-year see warranty details
Delivery Time 5-7 business days

About product

Trina Solar TSM DEG15VC.20 is a PV module fit for both residential and commercial applications. Trina Solar engineers made the DuoMax series durable and efficient while minimizing the amount of useful space required for their operation. The Passivated Emitter Rear Contact (PERC) technology ensures excellent power output. This solar cell type employs an additional reflective layer to absorb more sunlight. 

Another advantage is the half-cut cell technology. TSM DEG15VC.20 has solar cells half the size of those installed in conventional panels. The main benefits are decreased power loss, improved longevity and better low-light performance. The efficiency of this model reaches 20.2% — well above the market’s average. 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. Trina Solar paid as much attention to durability as they did to performance. TSM DEG15VC.20 is guaranteed to retain at least 86.4% of output after 30 years. Product warranty for this panel lasts 12 years. 

  • 252 half-cut PERC cells
  • 480 W nameplate capacity
  • 20.2% efficiency
  • 1500 V DC maximum system voltage
  • MC4 connectors
  • 12 years of product and 30 years of performance warranty

Higher efficiency of up to 20.2%

TSM DEG15VC.20 guarantees the highest power output. PERC technology and potent anti reflective coating result in 20.2% module efficiency. This is significantly higher than average, which will result in substantial extra savings over the years of operation.

Better performance at high temperatures

Excellent temperature coefficient means more energy as temperature rises. Every 1.8°F hike above 77°F will decrease your panel’s efficiency by only 0.34%.

Quality and reliability

TSM DEG15VC.20 receives multiple quality checks throughout the manufacturing process and is subject to stringent quality and reliability testing. The manufacturing facilities are highly automated, eliminating the risk of human error. Trina Solar is dedicated to quality, safety and reliability to ensure you get the very best.

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 30th year will not surpass 0.40%. After 30 years, the module will still produce more than 86.4% of its initial output.

A panel that can handle hail, wind and snow

This module is weatherproof due to the 1.38" frame manufactured from anodized aluminum and a layer of safety tempered glass. The modules' front and rear sides can withstand loads of 5400 and 2400 Pa, respectively.


91.14" x 40" x 1.38"


66.1 lb

Reviews & Questions

  • Reviews (2)
  • Questions (2)
High heat efficiency, extensive warranty coverage, and minimal degradation over time.
Devon Stamm
01/07/2023 12:49 pm
As a result of the Half Cell technology, efficiency is increased even in the shade. Moreover, these panels have a 30-year guarantee and suffer very little efficiency loss over time. Due to the negligible drop in efficiency, these premium panels are a no-brainer.
Nathanael Sauer
01/05/2023 12:13 pm

Leave a review

Are they AC panels like SunPower's?
Paul Shain
01/03/2023, 12:10
These panels produce direct current (DC)
How many amps are they?
01/03/2023, 07:35
Maximum power current for this model is 13.29 A