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VSUN Brand review

VSUN465N-120MH-BB

465 Wp TOPCon
ComparePV verdict

Middle of its segment, modest efficiency

Rank 6,855 of 14,005
Compare panels Datasheet PDF
Power (Wp)
465
Typical for its class
Efficiency (%)
21.49
Weak · bottom 6%
Density (Wp/m²)
214.9
Weak · bottom 6%
Temp (%/°C)
-0.300
Weak · bottom 20%
Weight (kg)
23.9
Typical · median 24.0 kg
Warranty (yrs)
30
Typical · median 30 yrs

The VSUN N-120MH-BB photovoltaic module series represents a breakthrough in efficiency thanks to the use of advanced N-type cells in TOPCon technology. This solution almost completely eliminates the problem of light-induced degradation (LID) and potential-induced degradation (PID), which translates into a significantly longer lifespan and stability of energy yields in the long-term perspective. These panels stand out for their exceptional operational efficiency even in low-light conditions, which is key to optimizing the return on investment in the Polish climate. The design based on 120 half-cut cells effectively minimizes energy losses resulting from internal resistance and limits the negative impact of partial shading on the operation of the entire system. Thanks to the use of bifacial energy generation, these modules can obtain additional power from radiation reflected from the ground, making them an ideal choice for modern home micro-installations and solar farms. The robust frame provides high resistance to extreme mechanical loads, such as heavy snow or strong winds, guaranteeing full technical safety. By choosing the VSUN N-120MH-BB, investors receive an exceptionally favorable temperature coefficient, which allows for maintaining a stable power output even during hot summer days, clearly distinguishing this series from older P-type solutions available on the market.

Ranking

1,089 panels in the segment TOPCon 450-500 W
Metric This panel Median Position in segment Overall rank
Module efficiency 21.49% 22.52% Weak · bottom 6% 8,144
Power density 214.9 225.2 Weak · bottom 6% 8,024
Temperature coefficient -0.300 -0.290 Weak · bottom 20% 6,093
Weight per kWp 51.4 52.2 Typical 4,788
Performance warranty 30 yrs 30 yrs Typical 21
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

0 positive · 3 caution
Best for

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

Not ideal for

Tight roof space, roofs where every square metre has to count and hot climates.

Watch-outs
21.49% module efficiency

Bottom 6% of the TOPCon 450-500 W segment, against a median of 22.52%. Ranked 8,144th in the whole database.

214.9 watts per square metre

Bottom 6% of the TOPCon 450-500 W segment, against a median of 225.2. Ranked 8,024th in the whole database.

-0.300 %/°C temperature coefficient

Bottom 20% of the TOPCon 450-500 W segment, against a median of -0.290.

Notes from the database
  • At 21.5% efficiency, this panel is 1.0pp below the TOPCon 450-500W median of 22.5%
  • At 214.9 W/m², this panel generates 10.3 W/m² less per unit area than TOPCon 450-500W median (225.2 W/m²)
  • At -0.30%/°C, hot weather performance is typical for TOPCon 450-500W panels
  • #8144 for efficiency, #6093 for temperature performance out of 14005 panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 465 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 21.49 % Weak Segment median 22.52%
Vmpp · Impp 34.92 V · 13.32 A Operating point at max power
Voc · Isc 42.21 V · 14.08 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 1908×1134×30 mm · 2.16 m² of roof
Weight 23.9 kg Typical Typical · median 24.0 kg
Cells 120 · TOPCon Monocrystalline
Coefficient Pmax -0.300 %/°C Weak bottom 20% of its segment
Coefficient Voc · Isc -0.260 · 0.046 %/°C
NOCT 45 °C At 800 W/m², 20 °C ambient
Product warranty 25 years Hardware defects only
Performance warranty 30 years Typical median 30 yrs · median 30 yrs
End-of-warranty output 87.4 % Equals 406 W guaranteed
Degradation 1.00 → 0.40 % First year, then annual

Datasheet charts

Open datasheet PDF

Measured curves published by VSUN in this model's datasheet. A chart carrying a wattage was measured on that variant alone - only the ones that describe 465 Wp appear here. The rest cover the whole series.

Additional Value from VSUN's Linear Warranty (30-year Linear Power Output Warranty) Additional Value from VSUN's Linear Warranty (30-year Linear Power Output Warranty) Whole series

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
-0.300 %/°C against a segment median of -0.290
-
Filter these
Size
Panel Power Eff. Temp. Weight Difference
VSUN VSUN465N-120MH-BB 465 W 21.49% -0.300 23.9 kg You are here
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg +45 W, cooler, +3.5 pp
AIKO-A495-MCE54Mw 495 W 24.80% -0.260 21.0 kg +30 W, cooler, +3.3 pp
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg +40 W, cooler, +3.2 pp
AIKO-A490-MCE54Mw 490 W 24.50% -0.260 21.0 kg Cooler, lighter, +3.0 pp
LR7-54HJD-500M 500 W 24.50% -0.240 23.5 kg +35 W, cooler, +3.0 pp
CIPRO-TN9C54M-500W 500 W 24.50% -0.260 21.4 kg +35 W, cooler, +3.0 pp
VSUN455N-120MH 455 W 21.03% -0.300 23.9 kg -10 W, -0.5 pp
VSUN460N-120BMH-DG-BB 460 W 21.26% -0.300 26.7 kg Heavier, -0.2 pp
VSUN470N-120MH-BB 470 W 21.72% -0.300 23.9 kg +0.2 pp
LR7-60HVH-560M 560 W 24.80% -0.260 25.0 kg +95 W, cooler, +3.3 pp
LR7-60HVH-555M 555 W 24.60% -0.260 25.0 kg +90 W, cooler, +3.1 pp
LR7-60HVHL-550M 550 W 24.40% -0.260 16.3 kg +85 W, lighter, +2.9 pp
JAT60S40-540/LR 540 W 24.40% -0.260 23.5 kg +75 W, cooler, +2.9 pp
GK-5-60HG-540M 540 W 24.40% -0.260 23.3 kg +75 W, cooler, +2.9 pp
JKM545-54QL6-DV-F1-EU 545 W 24.27% -0.260 27.5 kg +80 W, cooler, +2.8 pp
LR7-60HVH-545M 545 W 24.20% -0.260 25.0 kg +80 W, cooler, +2.7 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 910 panels of the same or similar size to this one, within ±50 mm. See them here Found 1489 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
How does TOPCon cell technology in the VSUN N-120MH-BB differ from older PERC cells?
The N-type TOPCon cells used in the VSUN N-120MH-BB feature an additional tunnel oxide layer that reduces recombination losses as well as LID and PID degradation, common issues in older P-type PERC panels. This lets the module reach efficiency up to about 21.7% and deliver a more stable energy yield over the long term, resulting in higher total energy output from the system.
What is the maximum power output and efficiency of the VSUN N-120MH-BB panels?
The VSUN N-120MH-BB series reaches a maximum power of up to 470 Wp with module efficiency of around 21.7%. This is thanks to 120 N-type half-cut cells, which reduce resistive losses and improve panel performance under partial shading, such as from chimneys or roof antennas, by letting cell segments operate independently.
Are the VSUN N-120MH-BB panels bifacial, generating power from the rear side too?
No, the N-120MH-BB version is a monofacial module with a white backsheet, designed for standard roof-mounted installations. VSUN also offers a dual-glass variant in the same family, the BMH-DG-BB, which is bifacial and better suited to ground-mount setups or light-colored surfaces where reflected light can be captured.
What warranty comes with the VSUN N-120MH-BB panels?
The manufacturer provides a 25-year product warranty and a 30-year power output warranty, standard for modern N-type modules. This means that even after 30 years of operation the panel should retain a significant share of its rated initial power output, making the series a solid investment despite being discontinued.
Do the VSUN N-120MH-BB panels perform well in high summer temperatures?
Yes, with a power temperature coefficient of -0.3%/°C, the module loses less output as temperature rises compared to older P-type panels, which typically sit around -0.35 to -0.40%/°C. In practice, this means more stable energy production on hot summer days, which matters when designing systems for Poland's summer climate.
Is the VSUN N-120MH-BB series still available for purchase?
The N-120MH-BB series has been discontinued by VSUN and replaced by newer models. Availability is now limited to remaining distributor stock. Before buying panels for a larger installation, it's worth confirming current stock with your supplier, as matching panels from the same production batch may not be available for future additions.
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