Out of stock

Canadian Solar 345W Solar Panel 120 cell HiKu CS3L-345

price as of September 21
Solar Loan from 6.99%
All Canadian Solar products All 345 Watt Panels


Rated Power Output 345 W
Voltage (VOC)39.8V
Cell number
  • 120 cell
Cell TypeMonocrystalline
Rated Efficiency18.7%
Connector TypeT4 - MC4 compatible
Backsheet Color
  • black
Frame Color
  • black
Dimensions LxWxH69.5" x 41.3" x 1.38"
Weight45.2 lbs
ManufacturerCanadian Solar
Operating Temperatures -40 °F to +185 °F
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

Canadian Solar 345W Solar Panel is an all-black high density mono PERC module, which offers great power output. The module shows an efficiency of up to 18.7%, which is achieved due to higher light absorption and reduced energy loss in cable. Canadian Solar CS3L-345 HiKu is an optimal solution for residential rooftop installations.

  • 345W Power Output
  • 18.7% Module Efficiency
  • 120 Cell, Monocrystalline
  • MC4 or T4 series Connector
  • Half-cut Cell Technology
  • Better shading tolerance
  • Wide operating temperature range
  • Extreme weather resilience
  • Aesthetic appearance

Higher Efficiency of up to 18.7%

Canadian Solar CS3L-345 HiKu modules have a higher than average efficiency of 18.7%, which is achieved by a higher light absorption, innovative module design, and better shading tolerance. With a smaller cell size CS3L-345 HiKu panels are also less vulnerable to the energy losses associated with excessive heating.

Extreme Weather Resistance

Canadian Solar panels are designed to work well even under extreme weather conditions, being able to withstand heavy snow load of up to 5400 Pa and a wind load up to 3600 Pa. Operating temperature range is -40°F ~ 185°F.

Easy Mounting

Reserved mounting holes allow for easier installation. Cables are optimised to be just the right length.

High Reliability

Canadian Solar modules feature lower internal current and lower hot spot temperature, which adds to their outstanding reliability. Cell crack risk has been limited in small regions.

PID Resistant

A low annual degradation rate of 0.55% guarantees no less than 84.8% of power output by year 25.

12 Year Product and 25 Year Performance Warranty

Canadian Solar 345-watt Panel goes with an industry-leading 25-year performance warranty independently backed by Powerguard’s third-party insurance and a 12-year product warranty.


69.5” x 41.3” x 1.38“


45.2 lbs

Reviews & Questions

  • Reviews (3)
  • Questions (3)
I had a very smooth experience with a1solarstore — their staff helped picking the panels and gave some advice on the installation. I picked this model because it’s cloudy around here. They barely lose power even when it’s raining.
07/17/2021 09:07 pm
I used the calculator to plan the system for my home. panels arrived in four days. Two were broken, but I contacted the store and they replaced the panels for me, so we are cool. It’s three months, the panels are quite powerful and I'm satisfied.
06/18/2021 10:17 am
I like this model. The pallet arrived in 6 days, the installation was very easy. So far everything goes well.
05/21/2021 12:46 pm

Leave a review

What if i don’t like the panel? Can I return it as is?
07/20/2021, 02:51
Merchandise, except for products that were specially ordered and/or assembled for the customer, may be returned within 30 days of the receipt of the product. However, there is a 15% restock fee for domestic returns. We have the right to refuse a refund, if the items are returned in a non-resalable condition.
I’m a little confused, is this for residential or commercial systems?
Nick N
06/21/2021, 13:50
Canadian Solar 345W Panel is suited both for residential and commercial installations.
who does the shipping?
06/08/2021, 09:48
We cooperate with best carriers like XPO Logistics, FedEx Freight and FedEx Ground