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Canadian Solar Brand review

CS3L-365P

365 Wp PERC
ComparePV verdict

Solid all-round for its segment

Rank 12,729 of 14,005
Compare panels Datasheet PDF
Power (Wp)
365
Weak · bottom 20%
Efficiency (%)
19.70
Typical · median 19.90%
Density (Wp/m²)
197.3
Typical · median 199.0
Temp (%/°C)
-0.360
Typical · median -0.350
Weight (kg)
21.1
Typical · median 21.4 kg
Warranty (yrs)
25
Typical · median 25 yrs

The HiKu CS3L-P series combines poly-crystalline PERC cells split using half-cut technology into a 2x60 layout, reducing resistive losses and noticeably lowering the risk of hot spots on partially shaded sections of the panel, for example from chimneys, antennas, or foliage. The lower internal current of the cells translates into reduced sensitivity to micro-cracks, which matters during transport and installation on roofs with difficult access. The module stands out with a low temperature coefficient for power, meaning it loses less energy on hot days compared to conventional panels, while a crossbar-reinforced aluminum frame delivers high resistance to snow and wind loads, making it a solid choice for installations in harsh climates. An IP68 junction box with three bypass diodes further protects the circuit against the effects of partial shading. The manufacturer backs the series with a 25-year linear power warranty and a 12-year warranty on materials and workmanship, contributing to a lower LCOE over the system's lifetime. This is a solution for investors seeking proven, industrial-grade quality for mid-scale rooftop and ground-mount installations.

Ranking

579 panels in the segment PERC 350-400 W
Metric This panel Median Position in segment Overall rank
Module efficiency 19.70% 19.90% Typical 12,511
Power density 197.3 199.0 Typical 12,473
Temperature coefficient -0.360 -0.350 Typical 12,345
Weight per kWp 57.8 55.8 Typical 11,426
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 · 3 caution
Best for

Residential, commercial and shaded-installations.

What owners get
Half-cut 2x60 cells limit hotspots

Splitting PERC cells with half-cut technology in a 2x60 layout lowers the module's internal current, meaningfully reducing hotspot risk under partial shading (chimneys, antennas, leaves) and limiting the impact of microcracks from transport and roof installation.

Reinforced frame - 5400 Pa snow / 3600 Pa wind

The cross-reinforced aluminum frame withstands up to 5400 Pa snow load and 3600 Pa wind load, above the typical 5400/2400 Pa standard, making the series well suited for harsh-climate installations.

Low power temperature coefficient

The module loses less power under high ambient temperatures than conventional PERC panels, translating into higher real-world energy yield on hot days compared to modules without this optimization.

25-year linear power warranty from a Tier-1 maker

Canadian Solar (founded 2001, Tier-1 bankable status) backs the series with a 25-year linear power warranty and a 12-year product warranty, giving investors financing confidence and a lower estimated LCOE over the system's lifetime.

IP68 junction box with 3 bypass diodes

The IP68-rated junction box with three bypass diodes further protects the electrical circuit from partial-shading effects and moisture, extending trouble-free operation.

Trade-offs
Discontinued production

The HiKu CS3L-P series (launched 2018) has been discontinued from active production and replaced by newer mono PERC models. This means limited availability (mainly distributor remaining stock) and potentially harder access to identical replacement modules for servicing.

Lower efficiency than competing mono PERC

Efficiency of 19.2-19.7% is noticeably lower than comparable 365 Wp Solaria PowerXT modules (20.2%), meaning less energy yield from the same roof area at equivalent power output.

No bifacial technology

The module is monofacial (is_bifacial: false), so it cannot capture additional reflected irradiance from the ground - in ground-mount installations on reflective surfaces, newer bifacial panels can deliver higher yield at comparable rated power.

Notes from the database
  • At 19.7% efficiency, this panel is on par with typical PERC 0-400W modules
  • At 197.3 W/m² power density, roof space requirements are typical for PERC 0-400W panels
  • Temperature coefficient of -0.36%/°C matches the PERC 0-400W median
  • #12511 for efficiency, #12345 for temperature performance out of 14005 panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 365 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 19.70 % Typical Segment median 19.90%
Vmpp · Impp 33.60 V · 10.87 A Operating point at max power
Voc · Isc 40.80 V · 11.44 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 21.4 kg
Cells 120 · PERC Polycrystalline
Coefficient Pmax -0.360 %/°C Typical median -0.350 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 -0.350
-
Filter these
Size
Panel Power Eff. Temp. Weight Difference
Canadian Solar CS3L-365P 365 W 19.70% -0.360 21.1 kg You are here
LNSU-410M 410 W 20.31% -0.360 24.5 kg +45 W, heavier, +0.6 pp
LNSK-340M 340 W 20.08% -0.360 21.0 kg -25 W, +0.4 pp
LNSU-405M 405 W 20.06% -0.360 24.5 kg +40 W, heavier, +0.4 pp
CS3K-330P 330 W 19.90% -0.360 18.5 kg -35 W, lighter
CS3K-335MB-AG 335 W 19.90% -0.360 22.3 kg -30 W, heavier, +5 yr warranty
CS3U-395P 395 W 19.90% -0.360 22.5 kg +30 W, heavier
LNSU-400M 400 W 19.81% -0.360 24.5 kg +35 W, heavier
LNSK-335M 335 W 19.78% -0.360 21.0 kg -30 W
CS3L-325P 325 W 17.60% -0.360 21.1 kg -40 W, -2.1 pp
CS3L-330P 330 W 17.80% -0.360 21.1 kg -35 W, -1.9 pp
CS3L-335P 335 W 18.10% -0.360 21.1 kg -30 W, -1.6 pp
CS3L-340P 340 W 18.40% -0.360 21.1 kg -25 W, -1.3 pp
CS3L-345P 345 W 18.70% -0.360 21.1 kg -20 W, -1.0 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 -10 W, -0.5 pp
CS3L-360P 360 W 19.50% -0.360 21.1 kg Very close match
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg +145 W, cooler, +5.3 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 series still available for purchase?
The HiKu CS3L-P series has been discontinued by Canadian Solar and replaced by newer TOPCon-based models with higher power output. Availability is now limited to remaining distributor stock. Check with a local supplier for current inventory; the manufacturer warranties (25-year power, 12-year product) remain valid regardless of the discontinuation.
What is the actual power output of the Canadian Solar HiKu CS3L-P panel, and how many are needed for a typical 5 kWp system?
The panel reaches a maximum power output of 365 Wp. To build a system of roughly 5 kWp, you would need approximately 14 modules. Thanks to PERC cell technology and the half-cut layout, the panels maintain stable performance even under partial irradiance, making it easier to plan smaller rooftop systems.
Does half-cut technology in the HiKu CS3L-P actually help against shading, like from a chimney?
Yes, splitting the cells into halves in a 2x60 layout reduces resistive losses and lowers the impact of partial shading on the whole panel. When a chimney or antenna shades part of the module, only the corresponding half loses output rather than the entire panel. Three bypass diodes in the IP68 junction box further protect the circuit from overheating in shaded sections.
What warranty applies to Canadian Solar HiKu CS3L-P panels, and does it still hold now that the series is discontinued?
The manufacturer provides a 12-year product warranty covering materials and workmanship, plus a 25-year linear power warranty. Discontinuation from current production does not void the warranty on units already sold, since Canadian Solar, as a tier 1 manufacturer, maintains warranty service for all its legacy product lines under the original purchase terms.
How well do HiKu CS3L-P panels perform on hot days and under heavy snow load?
Well — the module has a low power temperature coefficient, so it loses less energy during high heat than conventional polycrystalline panels. A cross-reinforced aluminum frame provides high resistance to snow and wind loads, making the series a solid choice for both hot climates and harsh winter conditions.
Are HiKu CS3L-P panels bifacial, generating power from both sides?
No, the HiKu CS3L-P series uses standard monofacial PERC cells and has no bifacial capability. The panel produces energy only from its front surface. Buyers looking for rear-side generation should consider bifacial models from other Canadian Solar lines, such as BiHiKu.
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