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CSUN CSUN450-120M
CSUN Brand review

CSUN450-120M

450 Wp PERC
ComparePV verdict

Solid all-round for its segment

Rank 11,044 of 14,005
Compare panels Datasheet PDF
Power (Wp)
450
Weak · bottom 12%
Efficiency (%)
20.85
Typical · median 20.82%
Density (Wp/m²)
207.9
Typical · median 208.5
Temp (%/°C)
-0.350
Typical · median -0.350
Weight (kg)
24.2
Typical · median 24.5 kg
Warranty (yrs)
25
Typical · median 25 yrs

The Mars series from CSUN is a line of monocrystalline modules built on half-cut PERC technology, designed to maximize energy yield while minimizing losses caused by shading effects and resistance. Splitting cells in half combined with a multi-busbar layout allows for more efficient current distribution and reduces the risk of microcracks, resulting in higher long-term reliability for the installation. Panels in this series stand out for their reinforced mechanical construction, backed by certifications for high wind and snow load resistance, making them well suited for both mountainous conditions and roofs exposed to strong gusts. Another key advantage is strong performance under low irradiance, which matters in a climate with frequent cloud cover and shorter winter days. The Mars series is aimed at both residential installation investors and larger commercial projects, where the ratio of generated power to roof area matters most. Thanks to its low temperature coefficient, the modules maintain stable output even on hot summer days, limiting the performance drops typical of cheaper solutions. It's a solid choice for installers seeking a proven balance between price, durability, and real-world energy yield in European conditions.

Ranking

449 panels in the segment PERC 450-500 W
Metric This panel Median Position in segment Overall rank
Module efficiency 20.85% 20.82% Typical 10,362
Power density 207.9 208.5 Typical 10,500
Temperature coefficient -0.350 -0.350 Typical 10,419
Weight per kWp 53.8 53.1 Typical 7,840
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

Commercial, utility-scale, shaded-installations and hot-climate.

What owners get
Half-cut cells reduce microcrack risk

Half-cut cell design combined with a multi-busbar layout lowers resistive losses and microcrack risk, resulting in more stable energy output over the module's lifetime.

Reinforced frame for heavy loads

Certified resistance to high snow and wind loads makes the Mars Series well suited for mountain rooftops and locations exposed to strong gusts, where cheaper frames tend to fail sooner.

Wide 445-670 Wp power range

19 variants within one series allow the module to be matched to both small residential installations and large commercial projects without switching suppliers.

Solid low-light performance

The PERC cell characteristics used in this series provide relatively stable output under diffuse light, which matters in the Polish climate with frequent cloud cover and short winter days.

Low power temperature coefficient

Limited power loss at high module temperatures helps maintain steady output during hot summer days, reducing the seasonal drop typical of cheaper constructions.

Trade-offs
Efficiency trails the top of the segment

Peak efficiency of 21.6% and 670 Wp max power fall behind competitors such as AIKO Comet 2U (670 Wp, 24.8%), meaning more module area is needed for comparable output at the same rated power.

Warranty below current market trend

The 12-year product / 25-year linear power warranty is standard for PERC technology but notably shorter than the 15/30-year terms now common among N-type TOPCon and HJT module manufacturers.

PERC technology losing ground to N-type

The series is built on PERC dating from 2021, while several tier-1 manufacturers (including peer comparable AIKO) have shifted to N-type cells with higher efficiency and lower LID degradation, which may affect the series' long-term competitiveness.

Notes from the database
  • At 20.9% efficiency, this panel is on par with typical PERC 450-500W modules
  • Power density of 207.9 W/m² matches the PERC 450-500W median
  • Temperature coefficient of -0.35%/°C matches the PERC 450-500W median
  • Ranked #10362 out of 14005 panels for efficiency in the database

Specifications

Open datasheet PDF
Nominal power (Pmax) 450 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 20.85 % Typical Segment median 20.82%
Vmpp · Impp 34.75 V · 12.95 A Operating point at max power
Voc · Isc 41.25 V · 13.82 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 1909×1134×35 mm · 2.16 m² of roof
Weight 24.2 kg Typical Typical · median 24.5 kg
Cells 120 · PERC Monocrystalline
Coefficient Pmax -0.350 %/°C Typical median -0.350 of its segment
Coefficient Voc · Isc -0.280 · 0.048 %/°C
NOCT 45 °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
End-of-warranty output 84.8 % Equals 369 W guaranteed
Degradation 2.00 → 0.55 % First year, then annual

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
-0.350 %/°C against a segment median of -0.350
-
Filter these
Size
Panel Power Eff. Temp. Weight Difference
CSUN CSUN450-120M 450 W 20.85% -0.350 24.2 kg You are here
AIKO-A495-MCE54Mw 495 W 24.80% -0.260 21.0 kg Cooler, +3.9 pp, +5 yr warranty
AIKO-A490-MCE54Mw 490 W 24.50% -0.260 21.0 kg Cooler, +3.6 pp, +5 yr warranty
LR7-54HJD-500M 500 W 24.50% -0.240 23.5 kg +50 W, cooler, +3.6 pp
CIPRO-TN9C54M-500W 500 W 24.50% -0.260 21.4 kg +50 W, cooler, +3.6 pp
GK-3-54HGb-500M 500 W 24.50% -0.260 21.4 kg +50 W, cooler, +3.6 pp
GCL-NR10R/54BGDF 500 W 24.50% -0.260 24.6 kg +50 W, cooler, +3.6 pp
CSUN445-120M 445 W 20.62% -0.350 24.2 kg -0.2 pp
CSUN455-120M 455 W 21.08% -0.350 24.2 kg +0.2 pp
CSUN460-120M 460 W 21.32% -0.350 24.2 kg +10 W, +0.5 pp
LR7-60HVH-560M 560 W 24.80% -0.260 25.0 kg +110 W, cooler, +3.9 pp
LR7-60HVH-555M 555 W 24.60% -0.260 25.0 kg +105 W, cooler, +3.8 pp
LR7-60HVHL-550M 550 W 24.40% -0.260 16.3 kg +100 W, cooler, +3.5 pp
JAT60S40-540/LR 540 W 24.40% -0.260 23.5 kg +90 W, cooler, +3.5 pp
GK-5-60HG-540M 540 W 24.40% -0.260 23.3 kg +90 W, cooler, +3.5 pp
JKM545-54QL6-DV-F1-EU 545 W 24.27% -0.260 27.5 kg +95 W, cooler, +3.4 pp
LR7-60HVH-545M 545 W 24.20% -0.260 25.0 kg +95 W, cooler, +3.3 pp

Found 746 panels of the same or similar size to this one, within ±10 mm. See them here Found 755 panels of the same or similar size to this one, within ±25 mm. See them here Found 916 panels of the same or similar size to this one, within ±50 mm. See them here Found 1503 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
What is the maximum power output of CSUN Mars Series panels?
The Mars Series panels reach a maximum power output of up to 670 Wp. That is a high rating for a single module, meaning fewer panels and less roof area are needed to reach a given system size. For commercial installations, this reduces mounting structure and cabling costs per installed kilowatt.
How does half-cut PERC technology in the Mars Series differ from standard panels?
In half-cut technology, cells are cut in half, reducing current losses and internal resistance across the module. Combined with the PERC layer, which reflects light back into the cell, the panel generates more energy from the same surface area. It also reduces sensitivity to partial shading, such as from a chimney or antenna on the roof.
What warranty comes with CSUN Mars Series panels?
The manufacturer offers a 12-year product warranty and a 25-year power performance warranty. This means the panel should maintain its guaranteed energy output level for a quarter century, which is a strong standard for good-quality monocrystalline modules currently available on the market.
Are Mars Series panels suitable for roofs exposed to heavy wind and snow loads?
Yes, Mars Series modules feature a reinforced mechanical structure, certified for high wind and snow load resistance. They work well both on mountain roofs, where heavy snow accumulates in winter, and on buildings exposed to strong gusts, such as tall structures or open terrain.
Do CSUN Mars panels perform well in cloudy weather and low sunlight?
Yes, one advantage of this series is good performance under low irradiance, which matters in climates with frequent cloud cover and shorter winter days. The panels generate energy more efficiently than cheaper alternatives even under diffuse light, not just under full sun.
Do Mars modules lose efficiency on hot summer days?
The panels have a low temperature coefficient, keeping output stable even at high module temperatures in summer. This matters because standard modules can lose over ten percent of their power at 60-70°C, while the Mars Series limits these losses, preserving real-world energy yield.
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