Out of stock

Canadian Solar 445W Solar Panel CS3W-445MS

price as of December 10
Solar Loan from 6.99%
All Canadian Solar products All 445 Watt Panels


Rated Power Output 445 W
Voltage (VOC)48.9 V
Number of cells144
Cell TypeMonocrystalline
Rated Efficiency20.1%
Connector TypeMC4 or MC4 compatible
Backsheet Colorwhite
Frame Colorsilver
Dimensions LxWxH83.0 X 41.3 X 1.57 in
Weight54.9 lbs
ManufacturerCanadian Solar
Manufacturer Part #CS3W-445MS
Operating Temperatures -40℃ to + 85℃
Scope of Application
  • Solar Panels for Boats
  • Solar Panels for Commercial
  • Solar Panels for Home
  • Solar Panels for RV
  • Grid-Tie
  • Off-Grid
Warranty12-year warranty extendable 25 years
Delivery Time 5-7 business days

About product

The HiKu PV module is a new solar panel from Canadian Solar. It features improved cell design and better energy harvest from a square foot. It’s a high-output module for commercial and industrial projects. 


  • 445W power output
  • 20.1% efficiency
  • 144 half-cut cells
  • MC4 connectors
  • 1000V or 1500V max. system voltage

Over 20% efficiency with PERC and half-cut cell design

The HiKu panel gives out 445 watts of power with a 20.1% conversion rate. High efficiency was achieved by implementing Passivated Emitter Rear Cell technology and half-cut cell design which both contributed to increasing the amount of sunlight that a solar cell gets. High power makes this panel a good choice for building installations of a greater scale. 

Better durability and shading tolerance

The Canadian Solar panel has 144 half-cut cells: half-cut cell design increases mechanical tolerance of a panel, prevents hot spots development and decreases the impact of microcracks. The shading tolerance of a panel also rises, because the module is split in two independent halves. The shading of a cell in one half doesn’t affect the other one.

Ready for any weather conditions

Canadian Solar panels are known to perform well in low-light conditions: on cloudy days and in the winter and the fall. They aren’t afraid of strong winds, tornadoes and hurricanes. The panels are capable of withstanding 5400 Pa snow load up and 3600 Pa wind load.

Comes protected by warranties

The Canadian manufacturer provides strong warranties to ensure that their customers have a good solar experience throughout the years. The HiKu comes with a 12-year warranty on materials and workmanship and a 25-year performance warranty. 


83.0 X 41.3 X 1.57 in


54.9 lbs

Reviews & Questions

  • Reviews (3)
  • Questions (3)
Was waiting for that to arrive on the market!
01/18/2022 05:27 pm
I was a bit discouraged when I discovered that the panels are actually made in China, but maybe I was prejudiced! They are top quality to me, do really well and have really decreased my expenses in these trying times.
01/12/2022 09:06 am
I’m having a good time with these panels. The output is great and weather is not much of an issue. The installer did a great job getting all the papers and so far i’m really happy with the investment.
12/23/2021 01:25 pm

Leave a review

what papers do i need to install these
01/19/2022, 16:22
Requirements differ from state to state. Your installer should know all the details.
will they work in an off-grid setting?
01/14/2022, 17:03
These panels can be used in off-grid systems, yes.
If i get 3 of these, how much for a delivery?
01/07/2022, 09:29
Unfortunately, the minimum order size is 6 modules.