US made
Out of stock

Canadian Solar 440W Solar Panel CS3W-440MS

Authorized Distributor
(410 ratings)
Q&A

Customer reviews & Questions

Verified buyer reviews
Customer Reviews
  • Reviews (410)
  • Questions (3)
TT1
01/20/2022
I have had these for two months and so far, I'm very happy. The change in performance on cloudy days is noticeable, but still much better than it is with my neighbor's panels!
Ilion
01/10/2022
Got my panels, everything’s in good shape. Very happy with the service and all the advice I got from you. As for the panels, we’ll see how they do!
No_On
12/27/2021
Hi We’ve ordered a batch of these panels for our shop in Oregon. Even though it can get pretty cloudy here, the panels are doing fine. This is actually why I chose CS, because their panels are known to be good in bad weather. The service was excellent and i’m here just to thank you, peace
Tina
12/16/2021
I was actually waiting for the panel to appear in your store to buy it haha. Thank you very much for what you do!
DeeFee
01/20/2022
What microinverters are compatible with these panels?
A1 SolarStore
You need microinverters that can be paired with a 144-cell 440W panel. Enphase IQ8 Plus, A, H are a great choice.
Kirk Kill
01/07/2022
sorry, i’m newb in this, is it poly or mono panel?
A1 SolarStore
It’s monocrystalline panel.
harra
12/12/2021
Do you deliver to Vermont?
A1 SolarStore
Currently, the delivery is for the East coast only.

Specification

Length83in
Width41.3in
Rated Power Output 440 W
Voltage (VOC)48.7V
Maximum String Voltage 1000V
Number of cells144
Cell TypeMonocrystalline
Rated Efficiency19.9%
Connector TypeMC4 or MC4 compatible
Backsheet Colorwhite
Frame Colorsilver
Dimensions LxWxH83.0 x 41.3 x 1.57 in
Pallet Qty27
ManufacturerCanadian Solar
Manufacturer Part #CS3W-440MS
Operating Temperatures -40℃ to + 85℃
Scope of Application
  • Solar Panels for Boats
  • Solar Panels for Home
  • Solar Panels for RV
Use
  • Grid-Tie
  • Off-Grid
Warranty12-year warranty extendable 25 years
Delivery Time 5-7 business days

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

About product

The HiKu module is a fresh addition to the Canadian Solar product line. It’s a high-output solar panel for commercial and industrial installations. 

Features:

  • 440W power output
  • 19.9% efficiency
  • 144 half-cut cells
  • MC4 connectors
  • 1000V or 1500V max. system voltage

High efficiency allows to build powerful systems

The HiKu panel provides a great 440W power output with 19.9% efficiency which is better than average numbers on the market. High conversion rate allows you to build powerful installations with less space and less modules. 

Half-cut design increases durability and shading tolerance

The new Canadian Solar panel has 144 half-cut cells which makes it slightly larger than 60/120-cell panels and makes it more suitable for commercial projects. Half-cut cell design makes the panel sturdier and less susceptible to microcracks. What is more, it increases the shading tolerance of a panel, because the panel is split in two halves. It’s like having two small panels that are wired in parallel.

The panel is ready for bad weather

Canadian Solar panels are made to perform well in bad weather. They have always been doing well in low-light conditions, like on cloudy days and in the winter and the fall. At the same time they are durable enough to withstand heavy snow load up to 5400 Pa and wind load up to 3600 Pa.


Comes protected by warranties

The HiKu is accompanied by rather standard, but still nice warranties from Canadian Solar. The panel comes with a 12-year warranty on materials and workmanship and a 25-year performance warranty. 

Size

83.0 X 41.3 X 1.57 in

<42>Weight

54.9 lbs

Authorized Canadian Solar Distributor

Authorized Distributor Certificate
  • Genuine Products: You’re getting the real deal, backed by the manufacturer’s warranty.
  • Exclusive Offers: You can access promotions, discounts, or bundles that are only available through authorized distributors.
  • Competitive Pricing: We offer the best prices because we source directly from the manufacturer, with no middlemen driving up costs.
  • Overview
  • Articles
  • FAQ

Canadian Solar Panels for Sale

Canadian Solar is one of the most recognized names in the global solar panel market. Known for its impressive mix of affordability, efficiency, and long-term reliability, Canadian Solar panels have earned their place as one of the most popular choices for homeowners and businesses alike. From 400W to 550W models, these panels offer solid power outputs and are backed by excellent warranties.

Founded in 2001, Canadian Solar Inc. (NASDAQ: CSIQ) has grown to become one of the world's largest solar technology companies with over 87 GW of solar modules shipped globally. With manufacturing facilities across Asia and a strong presence in North America, the company has established itself as a leading Tier 1 manufacturer serving residential, commercial, and utility-scale markets in over 160 countries worldwide.

Why Choose Canadian Solar Panels?

🏆 Tier 1 Manufacturer

Leading global solar manufacturer with over 25 GW production capacity across multiple facilities, exporting to 160+ countries with proven financial stability and bankability

⚡ Advanced Technology

Half-cell PERC technology with up to 21.6% efficiency and excellent low-light performance with <0.5% annual power degradation ensuring long-term reliability

💰 Cost Advantage

Industry-leading price-to-performance ratio at $0.45-$0.85/W with excellent value proposition and competitive system pricing at $2.50-$3.50/W installed

🛡️ Superior Warranty

25-year linear power warranty + 25-year product warranty exceeding industry standards with comprehensive coverage and global support network

"Canadian Solar's 400W panel gives us exceptional value at $0.58/W—customers love the Tier 1 quality and proven reliability, and we appreciate the advanced PERC technology and robust build quality."

Canadian Solar Panel Models: Powering Homes & Businesses

Canadian Solar 400W Solar Panel

  • Efficiency: Up to 21.1%
  • Ideal for: Residential systems and rooftops with limited space
  • Warranty: 25 years product and performance
  • Features: Enhanced durability and excellent low-light performance

→ Check 400W Panels

Canadian Solar 450W Solar Panel

  • Efficiency: Up to 21.6%
  • Ideal for: Larger homes, small businesses, and commercial setups
  • Warranty: 25 years product and performance
  • Features: Durable and high-performing, ideal for locations with consistent sunlight.

→ Check 450W Panels

Canadian Solar 550W Solar Panel

  • Efficiency: Up to 21.0%
  • Ideal for: Commercial installations and large residential solar setups
  • Warranty: 25 years product and performance
  • Features: Designed to produce more power with fewer panels, making it perfect for large-scale energy generation needs.

→ Check 550W Panels

Canadian Solar 700W Solar Panel

  • Efficiency: Up to 20.8%
  • Ideal for: Commercial and industrial-scale solar power projects
  • Warranty: 25 years product and performance
  • Features: Maximizes power output while reducing system complexity by needing fewer modules.

→ Check 700W Panels

SeriesPowerEfficiencyWarrantyIdeal use-case
400W400W21.1%25 yearsSpace-limited roofs
450W450W21.6%25 yearsLarger homes, businesses
550W550W21.0%25 yearsCommercial & large homes
700W700W20.8%25 yearsCommercial & industrial

Certifications & Testing

FeatureCertification/StandardBenefit
PID-free designTÜV Rheinland IEC 628041% annual degradation cap
Safety & constructionIEC 61215/61730 (2023 ed.)Global code compliance
Quality systemISO 9001/14001/45001Robust QA/HSE culture
Bifacial energy modelingNREL bifacial PV performance studyPredictable rear-side gain

"We have a customer who saved 20% over competing brands by going with Canadian Solar 400W panels for their home system. The performance is exceptional, and the savings speak for themselves."

CertainTeed Solar vs. Canadian Solar: Which is Better for Your Project?

FeatureCanadian SolarCertainTeed Solar
EfficiencyUp to 21.6%Up to 20.5%
Price per Watt$0.45 - $0.85$0.70 - $0.75
Warranty25 years25 years
Made InChina/Canada/VietnamUSA

Customer Reviews of Canadian Solar Panels

"After comparing several brands, I decided on Canadian Solar for my 8 kW residential system. The panels were easy to install, and I've seen a steady return on my energy savings over the past year."

"We installed Canadian Solar's 550W panels for a commercial warehouse. The energy output has been fantastic, and the warranty gives us peace of mind. Highly recommend them for large-scale systems."

Frequently Asked Questions

Are Canadian Solar panels Tier 1?

Yes, Canadian Solar is recognized as a Tier 1 manufacturer by Bloomberg New Energy Finance, indicating strong financial stability and proven bankability in the solar industry.

Where are Canadian Solar modules made?

Canadian Solar panels are manufactured in China, Canada, and Vietnam, with stringent quality standards at each facility.

What is the Canadian Solar warranty?

Canadian Solar offers a 25-year linear power warranty and a 25-year product warranty on their panels.

Can I buy Canadian Solar panels in the USA?

Yes, Canadian Solar panels are available throughout the USA and are eligible for domestic content incentives when installed with other U.S.-made components.

Ready to Power Your Project?

Get premium Canadian Solar panels with Tier 1 quality at competitive prices. Advanced PERC technology, 25-year warranty, and proven reliability.

Shop Canadian Solar Panels

Can you use solar panels for crypto mining? A non-cryptic take

How to install solar panels: A complete guide

How much energy does a solar panel produce?

Not just China: Where solar panels are made

What makes Canadian Solar panels a good choice?
Canadian Solar is a Tier 1 solar panel manufacturer known for its high efficiency, durability, and affordability. The company offers a wide range of monocrystalline, polycrystalline, and bifacial panels, making them suitable for residential, commercial, and utility-scale projects.
What is the warranty on Canadian Solar panels?
Canadian Solar provides a 12- to 25-year product warranty, depending on the model. Additionally, their linear performance warranty guarantees at least 84.8% of the original output after 25 years for most of their modules.
Where are Canadian Solar panels manufactured?
Despite the name, Canadian Solar is a global company headquartered in Canada, but its panels are manufactured in China, Canada, Vietnam, and other locations. The company follows strict quality control and testing standards to ensure durability and performance.
What types of solar panels does Canadian Solar offer?
Canadian Solar produces a variety of high-efficiency monocrystalline (HiKu, HiDM) and polycrystalline solar panels. Their bifacial modules can generate power from both sides, increasing total energy production. They also offer TOPCon and Heterojunction Technology (HJT) panels for even greater efficiency.
Are Canadian Solar panels good for extreme weather conditions?
Yes, Canadian Solar panels are designed to withstand high wind and snow loads (up to 5400 Pa for snow and 4000 Pa for wind). They are also resistant to salt mist, ammonia, and PID degradation, making them ideal for various climates, including coastal and desert environments.
Are Canadian Solar panels compatible with battery storage systems?
Yes, Canadian Solar panels work well with most solar battery storage systems, including lithium-ion and lead-acid batteries. They can be integrated into off-grid and hybrid solar setups when paired with a compatible inverter.
Are Canadian Solar panels Tier 1?
Yes, Canadian Solar is a Tier 1 manufacturer, meaning it has a strong financial background and a proven track record of producing high-quality, reliable solar panels. The company has been a leader in the solar industry for over 20 years and is consistently ranked among the world's top solar panel manufacturers.

More Canadian Solar Solar Panels

Related materials

Solar arrays: Powered by sunshine

What's in the datasheet: A guide to reading solar panel specs

Understanding solar panel output: Standard Test Conditions vs. Real world

What are perovskite solar cells and how will they change solar industry

Product is out of stock

Here are some relevant products with similar characteristics or from the same manufacturer

In stock
Customer Choice

Canadian Solar 450W Solar Panel 108 Cells Black CS6.1-54TM-450

  • Price per Watt$0.45
  • Rated Power Output 450 W
  • Voltage (VOC)38.9V
  • Number of cells108
  • Cell TypeMonocrystalline
In stock

JA Solar 440W Solar Panel 108 Cell Bifacial JA-JAM54-D41-440MB

  • Price per Watt$0.56
  • Rated Power Output 440 W
  • Voltage (VOC)39.38V
  • Number of cells108
  • Cell TypeMonocrystalline
In stock

Q CELLS 435W Solar Panel 108 Cell Q.TRON HQC-435-QTRON-BKM-G2.H+-DCA Assembled in the USA

  • Price per Watt$0.65
  • Rated Power Output 435 W
  • Voltage (VOC)39.6V
  • Number of cells108
  • Cell TypeMonocrystalline
In stock

Q CELLS 415W Solar Panel 132 Cell Q.PEAK DUO HQC-415-QPD-BKML-G10.C+-DCA Assembled in the USA

  • Price per Watt$0.63
  • Rated Power Output 415 W
  • Voltage (VOC)45.41V
  • Number of cells132
  • Cell TypeMonocrystalline
In stock

Solarever 450W Solar Panel 96 Cells Mono Perc Bifacial SE-182*105-450M-96-BD

  • Price per Watt$0.56
  • Rated Power Output 450 W
  • Voltage (VOC)35.03V
  • Number of cells96
  • Cell TypeMonocrystalline
In stock

Trina 405W Solar Panel 144 Cell All-Black Bifacial TSM-405-NE09RC.05

  • Price per Watt$0.37
  • Rated Power Output 405 W
  • Voltage (VOC)49.6V
  • Number of cells144
  • Cell TypeMonocrystalline