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Solar N Plus SP-M10/108HG405W
Solar N Plus Brand review

SP-M10/108HG405W

405 Wp PERC Bifacial 70%
ComparePV verdict

Warranty pick, heavy for its output

Rank 11,488 of 14,005
Compare panels Datasheet PDF
Power (Wp)
405
Typical for its class
Efficiency (%)
20.70
Typical · median 20.60%
Density (Wp/m²)
207.4
Typical · median 206.2
Temp (%/°C)
-0.350
Typical · median -0.350
Weight (kg)
24.1
Weak · 2.1 kg above median
Warranty (yrs)
30
Strong · top 17%

The Solar N Plus Cygnus SP-M10/108HG solar panel series introduces a new quality to prosumer and commercial installations, focusing on advanced N-type TOPCon technology. Choosing this solution is primarily an investment in higher energy conversion efficiency and significantly slower degradation over time compared to traditional P-type cells. A key feature of the series is the bifacial glass-glass construction, which not only extremely strengthens the module's mechanical resistance to harsh weather conditions but also allows for generating additional energy from reflected radiation. Thanks to the use of M10 wafers and SMBB technology, these panels effectively eliminate the problem of energy losses due to shading and minimize the risk of micro-cracks. For the installer and investor, this means a higher yield per square meter while maintaining long-term system stability. Cygnus SP-M10/108HG modules are perfectly tailored for modern residential roofs, where aesthetics and maximum current efficiency in diffused light conditions matter. It is a reliable alternative to standard modules, offering an excellent temperature coefficient, which translates into real savings even on hot days, setting this product apart from the competition through minimal LID and LeTID degradation.

Ranking

954 panels in the segment PERC 400-450 W
Metric This panel Median Position in segment Overall rank
Module efficiency 20.70% 20.60% Typical 10,764
Power density 207.4 206.2 Typical 10,626
Temperature coefficient -0.350 -0.350 Typical 10,419
Weight per kWp 59.5 53.0 Weak · bottom 14% 12,180
Performance warranty 30 yrs 25 yrs Strong · top 17% 21
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

1 positive · 1 caution
Best for

Residential, commercial, shaded-installations and hot-climate.

Not ideal for

Weight-limited structures.

Strengths
30 year performance warranty

Top 17% of the PERC 400-450 W segment, against a median of 25 yrs.

Watch-outs
59.5 kg per kWp

Bottom 14% of the PERC 400-450 W segment, against a median of 53.0.

Notes from the database
  • At 20.7% efficiency, this panel is on par with typical PERC 400-450W modules
  • Power density of 207.4 W/m² matches the PERC 400-450W median
  • At -0.35%/°C, hot weather performance is typical for PERC 400-450W panels
  • At 24.1 kg, this panel is 2.1 kg heavier than the PERC 400-450W median (22.0 kg) - more demanding for installation crews
  • Bifacial design (70% factor) captures reflected light - adds 4-10% yield on ground-mount or white roof

Specifications

Open datasheet PDF
Nominal power (Pmax) 405 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 20.70 % Typical Segment median 20.60%
Vmpp · Impp 31.00 V · 13.07 A Operating point at max power
Voc · Isc 37.00 V · 13.93 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 24.1 kg Weak Weak · 2.1 kg above median
Cells 108 · PERC Monocrystalline
Bifaciality 70 % Rear output as a share of front
Coefficient Pmax -0.350 %/°C Typical median -0.350 of its segment
Coefficient Voc · Isc -0.280 · 0.050 %/°C
NOCT 45 °C At 800 W/m², 20 °C ambient
Product warranty 12 years Hardware defects only
Performance warranty 30 years Strong top 17% · median 25 yrs
End-of-warranty output 85.0 % Equals 344 W guaranteed
Degradation 2.00 → 0.45 % 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
-
With bifacial gain
-

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
-
Bifacial gain
Rear gain over light concrete: -
-

Model: bifaciality × albedo × 0.6 view factor. A first-order estimate, not a yield simulation.

Filter these
Size
Panel Power Eff. Temp. Weight Difference
Solar N Plus SP-M10/108HG405W 405 W 20.70% -0.350 24.1 kg You are here
AIKO-455-MAH54Db 455 W 23.30% -0.260 24.0 kg +50 W, cooler, +2.6 pp
LR5-54HTH-455M 455 W 23.30% -0.290 20.8 kg +50 W, cooler, +2.6 pp
YL455CF54 e/2 455 W 23.30% -0.290 20.3 kg +50 W, cooler, +2.6 pp
ESM-455T 455 W 23.30% -0.310 21.0 kg +50 W, cooler, +2.6 pp
SE5-54HBC-455W 455 W 23.30% -0.290 20.8 kg +50 W, cooler, +2.6 pp
JST-EDMH-(445-465)W-TD (455W class) 455 W 23.30% -0.300 20.5 kg +50 W, cooler, +2.6 pp
LX-455M/182R-96+ GG 455 W 23.30% -0.260 23.5 kg +50 W, cooler, +2.6 pp
SP-M10/108HG-395 395 W 20.20% -0.350 24.1 kg -10 W, -0.5 pp
SP-M10/108HG-400 400 W 20.50% -0.350 24.1 kg Very close match
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg +105 W, cooler, +4.3 pp
AIKO-A495-MCE54Mw 495 W 24.80% -0.260 21.0 kg +90 W, cooler, +4.1 pp
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg +100 W, cooler, +4.0 pp
AIKO-A490-MCE54Mw 490 W 24.50% -0.260 21.0 kg +85 W, cooler, +3.8 pp
LR7-54HJD-500M 500 W 24.50% -0.240 23.5 kg +95 W, cooler, +3.8 pp
CIPRO-TN9C54M-500W 500 W 24.50% -0.260 21.4 kg +95 W, cooler, +3.8 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
Do the Solar N Plus Cygnus SP-M10/108HG panels use N-type TOPCon or PERC cell technology?
The Cygnus SP-M10/108HG series is built on N-type TOPCon cell technology, which delivers higher conversion efficiency and significantly slower degradation compared to conventional PERC cells. N-type cells are inherently resistant to both LID and LeTID degradation, resulting in measurably higher energy yield over the full lifetime of the installation and a better return on investment.
What warranty does the Solar N Plus Cygnus SP-M10/108HG come with?
Solar N Plus provides a 12-year product warranty on Cygnus SP-M10/108HG modules. In addition, a 30-year linear power warranty guarantees that the panels will maintain their declared output for three full decades. Both warranty terms are comparable to those offered by leading manufacturers and are a key factor when calculating the long-term ROI of a photovoltaic system.
What does the bifacial glass-glass design of the Cygnus SP-M10/108HG mean for a rooftop installation?
The bifacial glass-glass construction of the SP-M10/108HG series allows the panel to generate power from both direct irradiance on the front side and reflected irradiance on the rear side. The dual-glass encapsulation also significantly improves mechanical resistance to hail, snow loads, and moisture ingress. The bifacial energy gain is highest on installations with a highly reflective surface underneath the modules, such as a white roofing membrane or light-colored gravel.
Do the 415 Wp Solar N Plus Cygnus panels lose a lot of power on hot summer days?
The Cygnus SP-M10/108HG series features an excellent temperature coefficient, meaning it loses less power at elevated ambient temperatures than standard modules. N-type TOPCon technology naturally provides a more favorable temperature coefficient than P-type cells, so these panels generate measurably more energy during hot summer days than their rated output might suggest, translating into real savings on electricity bills.
What is LID/LeTID degradation, and why are Cygnus SP-M10/108HG panels resistant to it?
LID (Light Induced Degradation) and LeTID (Light and elevated Temperature Induced Degradation) are power loss processes that affect P-type cells during the first months of operation. The N-type TOPCon cells used in the SP-M10/108HG series are inherently immune to both mechanisms, ensuring the module retains higher power output throughout its entire service life and delivers real financial savings over a 25-30 year horizon.
Solar N Plus isn't a Tier 1 manufacturer — is that a risk when buying Cygnus SP-M10/108HG panels?
Tier 1 classification reflects a manufacturer's financial capacity to secure project financing, not a direct measure of product quality. Solar N Plus does not appear on the major PV market Tier 1 lists. Before purchasing, verify the local distributor's warranty support, service network availability in your country, and existing installation references. The 12-year product warranty and 30-year power warranty are, however, comparable to those offered by leading Tier 1 brands.
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