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Solar N Plus Brand review

SP-M10/108H400W

400 Wp Monocrystalline
ComparePV verdict

Middle of its segment, short guarantee

Rank 11,812 of 14,005
Compare panels Datasheet PDF
Power (Wp)
400
Weak · bottom 24%
Efficiency (%)
20.50
Typical · median 21.30%
Density (Wp/m²)
204.8
Typical · median 212.6
Temp (%/°C)
-0.350
Weak · bottom 23%
Weight (kg)
21.0
Typical · median 22.5 kg
Warranty (yrs)
25
Weak · bottom 19%

The Solar N Plus CYGNUS series are modules designed for maximum energy yield, where every square meter of roof and every kilowatt-hour counts. The use of half-cut cells and multi-bin MBB architecture improves performance under partial shading and reduces losses due to microcracks, which translates in practice to more stable energy production in Polish conditions. CYGNUS also stands out for its high efficiency in low-light conditions - even with cloudy weather and in winter, the system can generate more energy than many competing modules of the same class. This means shorter payback periods and better predictability for investors.

It is a good choice for residential and commercial installations, as well as for larger projects where consistent quality and resistance to operating conditions are important. Thanks to its enhanced PID resistance, CYGNUS helps to minimize the risk of performance degradation over the long term, especially in higher-voltage installations.

Ranking

6,519 panels in the 300-500 W band, all technologies
Metric This panel Median Position in segment Overall rank
Module efficiency 20.50% 21.30% Typical 11,308
Power density 204.8 212.6 Typical 11,370
Temperature coefficient -0.350 -0.300 Weak · bottom 23% 10,419
Weight per kWp 52.5 53.2 Typical 6,043
Performance warranty 25 yrs 30 yrs Weak · bottom 19% 9,798
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

0 positive · 2 caution
Best for

Residential, commercial, utility-scale and shaded-installations.

Not ideal for

Owners who want a long output guarantee and hot climates.

Watch-outs
25 year performance warranty

Bottom 19% of the 300-500 W band, against a median of 30 yrs.

-0.350 %/°C temperature coefficient

Bottom 23% of the 300-500 W band, against a median of -0.300.

Notes from the database
  • Module efficiency of 20.5% is 1.3pp below average for database panels (median: 21.8%)
  • Power density of 204.8 W/m² is 13.3 W/m² below database median (218.1 W/m²) - needs more roof space
  • At -0.35%/°C, loses 0.05pp more power per degree than database median (-0.30%/°C)
  • Weight of 21.0 kg (5.5 kg below database median of 26.5 kg) allows easier transport and roof mounting
  • #11308 for efficiency, #10419 for temperature performance out of 14005 panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 400 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 20.50 % Typical Segment median 21.30%
Vmpp · Impp 30.80 V · 12.99 A Operating point at max power
Voc · Isc 36.80 V · 13.85 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 1722×1134×30 mm · 1.95 m² of roof
Weight 21.0 kg Typical Typical · median 22.5 kg
Cells 108 Monocrystalline
Coefficient Pmax -0.350 %/°C Weak bottom 23% of its segment
Coefficient Voc · Isc -0.280 · 0.050 %/°C
NOCT 45 °C At 800 W/m², 20 °C ambient
Product warranty 15 years Hardware defects only
Performance warranty 25 years Weak bottom 19% · median 30 yrs
End-of-warranty output 84.8 % Equals 328 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 -0.300
-
Filter these
Size
Panel Power Eff. Temp. Weight Difference
Solar N Plus SP-M10/108H400W 400 W 20.50% -0.350 21.0 kg You are here
LX-440M/182-108+GG 440 W 23.07% -0.240 23.6 kg Cooler, +2.6 pp, +5 yr warranty
JST-EDMH-(445-465)W-TD (450W class) 450 W 23.05% -0.300 20.5 kg +50 W, +2.6 pp, +5 yr warranty
QNN182-HG450-54 450 W 23.04% -0.290 24.0 kg +50 W, cooler, +2.5 pp
HY440-N108BDD 450 W 23.04% -0.300 23.5 kg +50 W, +2.5 pp, +5 yr warranty
NLBK-27-450 450 W 23.04% -0.300 22.9 kg +50 W, +2.5 pp, +5 yr warranty
RS41-450NBG-E3 450 W 23.04% -0.290 24.5 kg +50 W, cooler, +2.5 pp
SP-M10/108HG-395 395 W 20.20% -0.350 24.1 kg Heavier, -0.3 pp, +5 yr warranty
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg +110 W, cooler, +4.5 pp
AIKO-A495-MCE54Mw 495 W 24.80% -0.260 21.0 kg +95 W, cooler, +4.3 pp
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg +105 W, cooler, +4.2 pp
AIKO-A490-MCE54Mw 490 W 24.50% -0.260 21.0 kg +90 W, cooler, +4.0 pp
LR7-54HJD-500M 500 W 24.50% -0.240 23.5 kg +100 W, cooler, +4.0 pp
CIPRO-TN9C54M-500W 500 W 24.50% -0.260 21.4 kg +100 W, cooler, +4.0 pp

Found 1783 panels of the same or similar size to this one, within ±10 mm. See them here Found 1914 panels of the same or similar size to this one, within ±25 mm. See them here Found 3392 panels of the same or similar size to this one, within ±50 mm. See them here Found 3970 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
Is the Solar N Plus CYGNUS series still available for purchase?
The CYGNUS series has been discontinued and is no longer offered as a new product. If you're planning a new solar installation, ask your distributor about current replacements from Solar N Plus or other manufacturers with similar specifications. Some sales channels may still have remaining stock, but availability cannot be guaranteed.
What warranty does the Solar N Plus CYGNUS panel come with?
The manufacturer provides a 15-year product warranty covering manufacturing defects and a 30-year linear power output warranty. This means the module is expected to maintain a specified minimum output level for three decades — a solid foundation for long-term return-on-investment planning for both residential and commercial installations.
What is half-cut cell technology with MBB architecture, and what does it mean in practice for the CYGNUS series?
In CYGNUS panels, each PERC cell is cut in half, reducing operating current and resistive losses. The Multi Busbar (MBB) architecture distributes current flow across more conductive paths, so micro-cracks in individual cells have less impact on the overall module output. The practical result is more stable performance under partial shading — for example, from chimneys, dormers, or nearby trees.
Do Solar N Plus CYGNUS panels perform well on cloudy days and during winter in Poland?
Yes, the CYGNUS series is rated for high efficiency under low-irradiance conditions, which is especially important in Poland's climate with frequent overcast periods. The PERC technology combined with half-cut cells captures more energy from diffuse light on cloudy days and short winter days compared to older standard modules without these improvements.
What is the maximum power output of the CYGNUS module and which installations is it best suited for?
Solar N Plus CYGNUS modules reach a peak power output of up to 560 Wp. This makes them suitable for residential rooftop installations — where every square meter of roof space matters — as well as commercial projects that require consistent, repeatable quality at scale. The high per-panel wattage means fewer modules are needed to reach your target system capacity.
Are CYGNUS modules resistant to PID degradation, and does it matter over the long term?
Yes, the CYGNUS series features enhanced resistance to Potential Induced Degradation (PID), a gradual efficiency loss caused by high system voltage combined with moisture ingress. In higher-voltage systems — typical for commercial installations or long string configurations — PID resistance directly preserves module power output throughout the full 30-year operational lifetime.
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