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Canadian Solar Brand review

CS3L-335P

335 Wp PERC
ComparePV verdict

Solid all-round for its segment

Rank 13,194 of 14,005
Compare panels Datasheet PDF
Power (Wp)
335
Strong · top 22%
Efficiency (%)
18.10
Typical · median 19.00%
Density (Wp/m²)
181.1
Typical · median 190.0
Temp (%/°C)
-0.360
Typical · median -0.360
Weight (kg)
21.1
Typical · median 19.0 kg
Warranty (yrs)
25
Typical · median 25 yrs

The HiKu CS3L-P series is a proven choice for installers looking for panels that combine mechanical durability with a competitive price per watt. The modules are built on polycrystalline PERC cells arranged in a 120-cell layout, delivering higher output than conventional panels in this class without moving up to pricier mono or half-cut technologies. The series' biggest advantage is its reinforced crossbar frame design, which effectively limits the impact of cell microcracks on long-term system performance - a real weak point in cheaper panels that here is solved at the structural level. The modules also stand out for their high snow and wind load resistance, making them a solid choice for roofs in regions with demanding climate conditions. Thanks to a low temperature coefficient, the panels maintain stable energy production even at high ambient summer temperatures, reducing the power losses typical of hot months. The manufacturer backs the series with a 25-year linear warranty on power output plus an additional product warranty, giving investors predictable returns on their installation. These panels are aimed at residential and commercial projects where durability and low lifetime cost of energy matter most.

Ranking

286 panels in the segment PERC 300-350 W
Metric This panel Median Position in segment Overall rank
Module efficiency 18.10% 19.00% Typical 13,200
Power density 181.1 190.0 Typical 13,183
Temperature coefficient -0.360 -0.360 Typical 12,345
Weight per kWp 63.0 60.0 Typical 12,843
Performance warranty 25 yrs 25 yrs Typical 9,798
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

5 positive · 4 caution
Best for

Residential and commercial.

What owners get
Tier-1 manufacturer with 25-year track record

Canadian Solar has operated since 2001 and holds BloombergNEF Tier 1 status, confirming its ability to secure non-recourse project financing from commercial banks and lowering the risk of manufacturer bankruptcy during the warranty period.

Reinforced frame limits microcrack propagation

Additional crossbars in the frame design reduce the risk of cell microcrack propagation, a common issue in cheaper polycrystalline modules, resulting in more stable energy output over time.

High mechanical resistance to snow and wind

The series features enhanced structural durability, making it a solid choice for roofs in regions with heavy snow loads, where cheaper modules often require additional mounting reinforcement.

25-year linear power warranty

The manufacturer covers modules with a 25-year linear power warranty and a 12-year product warranty, matching the market standard set by tier-1 peers such as JA Solar in this segment.

Low temperature coefficient

Thanks to a low temperature coefficient, the modules limit power losses at high ambient temperatures, which matters for installations on poorly ventilated roofs during summer months.

Trade-offs
Discontinued production (2019-2021)

The HiKu CS3L-P series was discontinued in 2021, limiting availability of matching modules for expanding existing systems and potentially complicating long-term warranty service.

Efficiency below current market standards

Module efficiency of 17.6-18.9% is noticeably lower than comparable products, such as JA Solar JAM60D10 (20.4%) or YS Solar SM-90 (21%), meaning lower energy yield for the same roof area.

Older poly PERC technology instead of mono

Polycrystalline PERC cells lag behind newer monocrystalline cells used by competitors in performance, resulting in higher module weight (21.1 kg) and a larger footprint needed to reach comparable system power.

Fire class C instead of A

The datasheet lists fire performance class C per IEC 61730, which can be a limitation for roofs requiring the higher class A rating more commonly found in newer mono module series.

Notes from the database
  • Module efficiency of 18.1% is 1.3pp below average for PERC 0-400W panels (median: 19.4%)
  • Power density of 181.1 W/m² is 13.3 W/m² below PERC 0-400W median (194.4 W/m²) - needs more roof space
  • At -0.36%/°C, hot weather performance is typical for PERC 0-400W panels
  • In the top 94% for efficiency among all PERC panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 335 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 18.10 % Typical Segment median 19.00%
Vmpp · Impp 32.40 V · 10.34 A Operating point at max power
Voc · Isc 39.40 V · 10.90 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 1765×1048×40 mm · 1.85 m² of roof
Weight 21.1 kg Typical Typical · median 19.0 kg
Cells 120 · PERC Polycrystalline
Coefficient Pmax -0.360 %/°C Typical median -0.360 of its segment
Coefficient Voc · Isc -0.280 · 0.050 %/°C
NOCT 42 °C At 800 W/m², 20 °C ambient
Product warranty 12 years Hardware defects only
Performance warranty 25 years Typical median 25 yrs · median 25 yrs

Simulations

Live - change any input
Lifetime output & value
30 years at 1200 kWh/kWp/year and €0.50 per kWh
Power in year 30
-
Lifetime energy
-
Energy value
-

Degradation from this panel's own datasheet figures. No inverter, soiling or shading losses.

Heat losses
-0.360 %/°C against a segment median of -0.360
-
Filter these
Size
Panel Power Eff. Temp. Weight Difference
Canadian Solar CS3L-335P 335 W 18.10% -0.360 21.1 kg You are here
LNSK-340M 340 W 20.08% -0.360 21.0 kg +2.0 pp
CS3K-330P 330 W 19.90% -0.360 18.5 kg Lighter, +1.8 pp
CS3K-335MB-AG 335 W 19.90% -0.360 22.3 kg Heavier, +1.8 pp, +5 yr warranty
LNSK-335M 335 W 19.78% -0.360 21.0 kg +1.7 pp
CS3L-365P 365 W 19.70% -0.360 21.1 kg +30 W, +1.6 pp
CS3K-325P 325 W 19.60% -0.360 18.5 kg -10 W, lighter, +1.5 pp
CS3L-360P 360 W 19.50% -0.360 21.1 kg +25 W, +1.4 pp
LNSK-330M 330 W 19.49% -0.360 21.0 kg +1.4 pp
CS3L-325P 325 W 17.60% -0.360 21.1 kg -10 W, -0.5 pp
CS3L-330P 330 W 17.80% -0.360 21.1 kg -0.3 pp
CS3L-340P 340 W 18.40% -0.360 21.1 kg +0.3 pp
CS3L-345P 345 W 18.70% -0.360 21.1 kg +10 W, +0.6 pp
CS3L-350P 350 W 18.90% -0.360 21.1 kg +15 W, +0.8 pp
CS3L-355P 355 W 19.20% -0.360 21.1 kg +20 W, +1.1 pp
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg +175 W, cooler, +6.9 pp
AIKO-A495-MCE54Mw 495 W 24.80% -0.260 21.0 kg +160 W, cooler, +6.7 pp

Found 233 panels of the same or similar size to this one, within ±10 mm. See them here Found 287 panels of the same or similar size to this one, within ±25 mm. See them here Found 407 panels of the same or similar size to this one, within ±50 mm. See them here Found 4204 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
Is the Canadian Solar HiKu CS3L-P panel still available for purchase?
The HiKu CS3L-P series has been discontinued from active production by Canadian Solar and replaced by newer mono PERC and half-cut models. These panels may still be found through distributors clearing remaining stock, but availability is limited and depends on local inventory. It's worth confirming the manufacturing date and warranty validity before buying.
What is the maximum power output of the HiKu CS3L-P panel, and is that good for a polycrystalline module?
HiKu CS3L-P models reach up to 350 Wp using 120 polycrystalline PERC cells. This output is higher than conventional poly panels in its class, thanks to PERC technology improving light capture at the cell's rear surface. It doesn't match the latest mono half-cut panels, but it's a solid result for lower-cost silicon technology.
What warranty comes with the Canadian Solar HiKu CS3L-P panels?
The manufacturer provides a 12-year product warranty and a 25-year linear power warranty. This means the module should retain a guaranteed percentage of its original rated power even after 25 years of operation. As a tier-1 manufacturer headquartered in Canada, Canadian Solar offers reliable support, though buyers of this discontinued model should confirm current warranty servicing terms with the distributor.
Does the reinforced frame on the HiKu CS3L-P actually reduce cell microcracks?
Yes, the additional crossbars in the frame design reduce module flex under load, which lowers the risk of microcracks forming in the polycrystalline cells over time. This matters because microcracks are a common cause of gradual output degradation in cheaper panels. As a result, the CS3L-P series withstands snow and wind loads better than standard frame constructions in its price class.
Is the HiKu CS3L-P suitable for roofs in regions with heavy snowfall?
Yes, the series was engineered for high mechanical resistance to snow and wind loads, thanks to its reinforced frame with additional crossbars. This makes it a good fit for mountainous regions or areas with harsh winter climates. Before installation, check the maximum load rating in the datasheet for the specific power variant you're using.
Do CS3L-P panels lose much output in hot summer temperatures?
The HiKu CS3L-P panels have a low temperature coefficient of power, meaning less output loss as cell temperature rises above the standard 25°C test condition. In practice, during summer heat, energy production stays more stable than in cheaper modules with a higher temperature coefficient. This is an advantage for roof installations with poor ventilation, where cells tend to heat up more.
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