Trina Solar Vertex S Series 385Watt 120 1/2 Cells Bifacial Clear Monocrystalline Solar Panel - TSM-DE09C.07 385W — front view
Trina Solar Vertex S Series 385Watt 120 1/2 Cells Bifacial Clear Monocrystalline Solar Panel - TSM-DE09C.07 385W — front view
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Trina Solar Vertex S Series 385Watt 120 1/2 Cells Bifacial Clear Monocrystalline Solar Panel - TSM-DE09C.07 385W

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Trina Solar Vertex S Series 385Watt 120 1/2 Cells Bifacial Clear Monocrystalline Solar Panel - TSM-DE09C.07 385W

Available to Order
SKU  PES-SPS-SPL-0045
OEM Authorized Dealer Full OEM Warranty
Regular price $293.76 USD
Regular price $ Sale price $293.76 USD
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$0.76/watt

$293.76/per panel
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SKU
PES-SPS-SPL-0045
MPN
TSM-DE09C.07 385W
Wattage
385W
Unit price
$0.76/W
Min purchase
30 pcs

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Trina Solar Vertex S Series 385Watt 120 1/2 Cells Bifacial Clear Monocrystalline Solar Panel - TSM-DE09C.07 385W — front view
Trina Solar Vertex S Series 385Watt 120 1/2 Cells Bifacial Clear Monocrystalline Solar Panel - TSM-DE09C.07 385W $293.76

Specifications

Datasheet
Power Rating 385W
Cell Type Monocrystalline
Product Category Solar Panel
Certifications<

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Returns are free in the first 30 days with no restocking or processing fees, although the customer may be responsible for paying return shipping. See our complete return policy on our Shipping, Delivery, and Returns page linked in the footer of this website.

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Our returns policy covers all purchases made through Portlandia Electric Supply. For warranty issues, as authorized distributors, we honor the full manufacturer warranty of ALL the brands on our website. See our complete returns and warranty policies on our Shipping, Deliver, and Returns page.

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All orders are processed within 72 hours and you can expect delivery on most orders within 5-7 business days. You will receive access to our customer portal after ordering, where it is easy to track all your shipments. See our Shipping, Delivery and Returns page for more details.

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You can arrange financing during the checkout process, or scroll further down this page for more details. Please note, if you'd like to finance your order, you can do so instantly, right at checkout.

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Our legendary lifetime customer support has helped make us the #1 online solar retailer! We have a dedicated team of solar professionals standing by to help you navigate the world of solar with ease. From selecting the perfect solar kit to installation and beyond, we provide support and expertise at every step of the journey.If you need help with ordering, shipping, troubleshooting, expanding your system, warranty issues, or anything else you have questions about for as long as you own your Portlandia Electric Supply equipment, we’ve got you covered: we’re always only a phone call or email away.

Trina Solar TSM-DE09C.07 - 385W Bifacial Solar Panel

Vertex S Series | 120 Half-Cell Monocrystalline | 20.0% Efficiency | 70±5% Bifaciality

385 W
Power Output
20.0%
Module Efficiency
46.3 lbs
Module Weight

Product Overview

The Trina Solar Vertex S TSM-DE09C.07 385W is a compact bifacial monocrystalline solar module designed for residential and commercial rooftop applications. Featuring 120 half-cut monocrystalline solar cells and multi-busbar technology, the module delivers 385W of peak power with approximately 20.0% module efficiency. Its bifacial construction provides a 70±5% power bifaciality rating, allowing the rear side of the module to capture additional reflected irradiance where installation conditions are suitable. With dimensions of 1,754 × 1,096 × 30 mm and a weight of approximately 21.0 kg, the Vertex S is designed to provide high power density while remaining relatively compact and easy to handle. The module supports up to 1,500V DC systems and is engineered for long-term outdoor operation from -40°C to +85°C.

Key Benefits

385W High Power Output: Provides 385W of rated power with a positive power tolerance of 0 to +5W, helping maximize energy generation from available installation space.

Bifacial Solar Technology: The module has a 70±5% power bifaciality rating, allowing the rear side to utilize reflected and diffuse irradiance for additional energy generation when site conditions support bifacial operation.

120 Half-Cell Design: The 120-cell configuration uses half-cell technology to reduce electrical resistance and improve module performance and reliability.

Multi-Busbar Technology: Multi-busbar cell technology improves light utilization, reduces series resistance, and supports higher current performance.

Compact Vertex S Format: The 1,754 × 1,096 mm module footprint provides a practical solution for residential and C&I rooftops where available roof space is limited.

High Mechanical Load Rating: The module is rated for mechanical loads up to 6,000 Pa positive and 4,000 Pa negative, supporting installation in demanding environmental conditions.

Long-Term Warranty: Trina Solar specifies a 25-year product workmanship warranty and a 25-year power warranty for the Vertex S module series.

How It Works

The Trina Solar TSM-DE09C.07 converts sunlight into DC electricity through monocrystalline photovoltaic cells. Direct sunlight is captured on the front of the module while the bifacial architecture allows the rear side to utilize reflected and diffuse light. The transparent backsheet enables rear-side irradiance to reach the bifacial cells, potentially increasing total energy yield compared with conventional monofacial modules.

Half-Cell Architecture: The 120 half-cell design helps reduce internal electrical resistance and supports efficient current flow throughout the module.

Bifacial Energy Capture: The rear side can capture reflected irradiance from surfaces beneath and around the module. Actual additional production depends on mounting height, ground reflectivity, row spacing, shading, and other site conditions.

High-Density Interconnect: The Vertex S platform combines high-density interconnect and multi-busbar technologies to maximize power generation from the module footprint.

Technical Specifications

Manufacturer Trina Solar
Series Vertex S
Model Number TSM-DE09C.07
Rated Power (Pmax) 385 W
Power Tolerance 0 to +5 W
Module Efficiency 20.0%
Cell Type Monocrystalline Silicon
Number of Cells 120 Half Cells
Maximum Power Voltage (Vmpp) 33.4 V
Maximum Power Current (Impp) 11.54 A
Open Circuit Voltage (Voc) 38.0 V
Short Circuit Current (Isc) 13.00 A
Maximum System Voltage 1,500 V DC
Maximum Series Fuse Rating 25 A
Temperature Coefficient of Pmax -0.34%/°C
Temperature Coefficient of Voc -0.25%/°C
Temperature Coefficient of Isc +0.04%/°C
NOCT 43°C ± 2°C
Operating Temperature -40°C to +85°C
Module Dimensions 1,754 × 1,096 × 30 mm (69.06 × 43.15 × 1.18 in)
Module Weight 21.0 kg (46.3 lbs)
Front Glass 3.2 mm High Transmission, AR-Coated Heat-Strengthened Glass
Frame 30 mm Anodized Aluminum Alloy
Bifaciality 70 ± 5%
Backsheet Transparent Backsheet

Bifacial Rear-Side Power Gain

Illustrative output based on the 385W front-side nameplate rating. Actual bifacial gain depends on site conditions and rear-side irradiance.

Front-Side Rated Output 385 W
5% Additional Energy 404 W equivalent
10% Additional Energy 424 W equivalent
15% Additional Energy 443 W equivalent
20% Additional Energy 462 W equivalent

Environmental Durability

Positive Mechanical Load: Up to 6,000 Pa

Negative Mechanical Load: Up to 4,000 Pa

Operating Temperature: -40°C to +85°C

Bifacial Construction: Transparent backsheet and 70±5% power bifaciality rating support rear-side energy generation.

Certifications & Warranty

Product Certifications: IEC 61215 / IEC 61730 / IEC 61701 / IEC 62716 / UL 61730
Quality Management: ISO 9001
Environmental Management: ISO 14001
Occupational Health & Safety: ISO 45001
Product Workmanship Warranty: 25 Years
Performance Warranty: 25 Years
First-Year Degradation: 2%
Annual Power Attenuation: 0.55% per year

Ideal Applications

Residential Rooftops: Compact module dimensions make the Vertex S suitable for residential rooftop solar installations.

Commercial & Industrial Rooftops: High power density and bifacial capability provide a flexible solution for C&I rooftop projects.

Bifacial Ground-Mount Systems: The 70±5% bifaciality rating can provide additional energy generation where rear-side irradiance is available.

Space-Constrained Solar Projects: The Vertex S format combines a compact footprint with up to 405W within the product range, making it useful where roof area is limited.

Packing & Logistics

Modules per Box 36 Modules
Modules per 40' Container 828 Modules

● Available | Contact us for current pricing, inventory, and lead time

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Customer Success Stories

Troy P

EG4 off-grid base kit, Happy with my purchase.

This is the first stage of my three planned purches. I got the eg4 inverter 6000 XP base kit with six 400 watt panels and the two server rack batteries. Did a little online research and followed the instructions and it got set up without any issues. Right now I'm just running it in my garage on a single outlet and have been running dual 750 watt water distillers with it. Once I get the second inverter and a bunch more panels and batteries, I plan on attaching it to my subpanel in my house that has my lights and outlets and appliances on it. Then I'll get a soft start for my AC and blower and run it on my main panel.

Jacob B

Easy Process, Genuine Support

Trying to pick the correct solar system for your needs can be very technical and frustrating. I wanted to thank Yvhan and the Portlandia Electric supply team for their patience and helpful attitudes through multiple calls. I feel like we were able to narrow it down to what worked for me and my family. My system works great and I couldn't be happier to have picked Portlandia Electric Supply.

Patrick B

Off Grid Solar Purchase

I wanted to get an offgrid solar system for years but didn’t know where to start. I found Portlandia Electric Supply on Facebook and decided to submit a quote. Within 24 hours I had a custom proposal that was almost half the price of the companies I had previously got quotes from. My wife and I decided to order online and the kit came in a timely manner and it was an easy install. Great company to work with!

James Martin

Highly Recommend

I would like to take the time to express the outstanding service that I was provided with by Portlandia Electric Supply. They provided me with all the answers to my questions, and after reviewing our quote over the phone I felt comfortable proceeding to order my kit. It’s exactly what I needed and they were there to help us over the phone when we had questions installing it. I highly recommend others in need to choose Portlandia Electric Supply.

Brian H

Solar Kit for Mobile Work Van

As a professional videographer, I needed reliable power on the go.Portlandia Electric Supply Delta Pro and roof-mounted panels were the perfect solution. Setup was easy, and the kit included everything needed. The Delta Pro powers my cameras, lights, laptop, and a small fridge with impressive battery capacity.

Keith S

Best Tech Support

You folks have been wonderful guiding me through the ins and outs of going solar. Plus your tech guys Rod and Nelson are the absolute best. They explained all the different aspects of inverters, batteries and how to keep them in top condition. Too much more to put here… but no other company has the 100% tech support you provide for your customers!

Coll A

Great Experience

My experience with Portlandia Electric Supply has been excellent. Before the sales, they answered all my questions to assure that I got what I needed. After the sales they continued to support me with answers and help. I had a warranty issue with a unit, and it was handled as well as possible. I would recommend them to anyone looking to go solar.

Troy P

EG4 off-grid base kit, Happy with my purchase.

This is the first stage of my three planned purches. I got the eg4 inverter 6000 XP base kit with six 400 watt panels and the two server rack batteries. Did a little online research and followed the instructions and it got set up without any issues. Right now I'm just running it in my garage on a single outlet and have been running dual 750 watt water distillers with it. Once I get the second inverter and a bunch more panels and batteries, I plan on attaching it to my subpanel in my house that has my lights and outlets and appliances on it. Then I'll get a soft start for my AC and blower and run it on my main panel.

Jacob B

Easy Process, Genuine Support

Trying to pick the correct solar system for your needs can be very technical and frustrating. I wanted to thank Yvhan and the Portlandia Electric supply team for their patience and helpful attitudes through multiple calls. I feel like we were able to narrow it down to what worked for me and my family. My system works great and I couldn't be happier to have picked Portlandia Electric Supply.

Patrick B

Off Grid Solar Purchase

I wanted to get an offgrid solar system for years but didn’t know where to start. I found Portlandia Electric Supply on Facebook and decided to submit a quote. Within 24 hours I had a custom proposal that was almost half the price of the companies I had previously got quotes from. My wife and I decided to order online and the kit came in a timely manner and it was an easy install. Great company to work with!

James Martin

Highly Recommend

I would like to take the time to express the outstanding service that I was provided with by Portlandia Electric Supply. They provided me with all the answers to my questions, and after reviewing our quote over the phone I felt comfortable proceeding to order my kit. It’s exactly what I needed and they were there to help us over the phone when we had questions installing it. I highly recommend others in need to choose Portlandia Electric Supply.

Brian H

Solar Kit for Mobile Work Van

As a professional videographer, I needed reliable power on the go.Portlandia Electric Supply Delta Pro and roof-mounted panels were the perfect solution. Setup was easy, and the kit included everything needed. The Delta Pro powers my cameras, lights, laptop, and a small fridge with impressive battery capacity.

Keith S

Best Tech Support

You folks have been wonderful guiding me through the ins and outs of going solar. Plus your tech guys Rod and Nelson are the absolute best. They explained all the different aspects of inverters, batteries and how to keep them in top condition. Too much more to put here… but no other company has the 100% tech support you provide for your customers!

Coll A

Great Experience

My experience with Portlandia Electric Supply has been excellent. Before the sales, they answered all my questions to assure that I got what I needed. After the sales they continued to support me with answers and help. I had a warranty issue with a unit, and it was handled as well as possible. I would recommend them to anyone looking to go solar.

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Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

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When you choose Portlandia Electric Supply, you’re buying real products from a trusted company with established supplier relationships. Enjoy peace of mind with 100% manufacturer warranty coverage and lifetime customer support. In an age where online shopping is fraught with risks, it’s crucial to avoid fly-by-night websites that skirt regulations. Shop with confidence, knowing you’re getting genuine quality and reliable service.

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