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VSUN Brand review

VSUN705N-132BMHT-DG

705 Wp TOPCon Bifacial 80%
ComparePV verdict

Middle of its segment, heavy for its output

Rank 1,037 of 14,005
Compare panels Datasheet PDF
Power (Wp)
705
Weak · bottom 22%
Efficiency (%)
22.70
Weak · bottom 23%
Density (Wp/m²)
227.0
Weak · bottom 21%
Temp (%/°C)
-0.300
Weak · bottom 22%
Weight (kg)
38.5
Weak · bottom 7%
Warranty (yrs)
30
Typical · median 30 yrs

VSUN N-132BMHT-DG is a module series using advanced N-Type TOPCon cell technology, which directly translates to significantly higher efficiency and exceptional resistance to degradation compared to traditional P-type solutions. Thanks to the use of an innovative bifacial double-glass design, these panels effectively generate energy from both sides, which in professional ground-mounted and commercial installations allows for additional energy gain from reflected light. The use of a 132-cell half-cut architecture ensures these modules handle the problem of partial shading perfectly and minimize resistive losses within the structure. This series effectively eliminates concerns about long-term performance thanks to low temperature coefficients and the near-total elimination of the LID phenomenon. It is a solution dedicated to demanding investors looking for maximum return on investment in large farm projects and modern rooftop systems for business. Compared to the competition, this model stands out with its unique resistance to extreme weather conditions and excellent operational stability in low light. By choosing these modules, you are investing in technology that guarantees the highest power density per square meter of surface area, forming a solid foundation for any modern photovoltaic installation in Polish climate conditions.

Ranking

420 panels in the segment TOPCon 700-750 W
Metric This panel Median Position in segment Overall rank
Module efficiency 22.70% 23.00% Weak · bottom 23% 3,307
Power density 227.0 230.2 Weak · bottom 21% 3,361
Temperature coefficient -0.300 -0.290 Weak · bottom 22% 6,093
Weight per kWp 54.6 52.9 Weak · bottom 7% 8,959
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

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

Not ideal for

Weight-limited structures, roofs where every square metre has to count and hot climates.

Watch-outs
54.6 kg per kWp

Bottom 7% of the TOPCon 700-750 W segment, against a median of 52.9. Ranked 8,959th in the whole database.

227.0 watts per square metre

Bottom 21% of the TOPCon 700-750 W segment, against a median of 230.2.

-0.300 %/°C temperature coefficient

Bottom 22% of the TOPCon 700-750 W segment, against a median of -0.290.

Notes from the database
  • At 22.7% efficiency, this panel is on par with typical TOPCon 700-750W modules
  • Power density of 226.9 W/m² is 3.2 W/m² below TOPCon 700-750W median (230.2 W/m²) - needs more roof space
  • Temperature coefficient of -0.30%/°C matches the TOPCon 700-750W median
  • 80% bifaciality enables rear-side power generation, boosting yield by 4-12% on reflective surfaces
  • In the top 24% for efficiency among all TOPCon panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 705 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 22.70 % Weak Segment median 23.00%
Vmpp · Impp 40.70 V · 17.33 A Operating point at max power
Voc · Isc 48.70 V · 18.37 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 2384×1303×35 mm · 3.11 m² of roof
Weight 38.5 kg Weak Weak · bottom 7%
Cells 132 · TOPCon Monocrystalline
Bifaciality 80 % Rear output as a share of front
Coefficient Pmax -0.300 %/°C Weak bottom 22% of its segment
Coefficient Voc · Isc -0.250 · 0.040 %/°C
NOCT 45 °C At 800 W/m², 20 °C ambient
Product warranty 12 years Hardware defects only
Performance warranty 30 years Typical median 30 yrs · median 30 yrs
End-of-warranty output 87.4 % Equals 616 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 705 Wp appear here. The rest cover the whole series.

Linear Power Warranty: Topcon Bifacial vs. PERC Bifacial (30 Years) Linear Power Warranty: Topcon Bifacial vs. PERC Bifacial (30 Years) Whole series I-V and P-V Curves at Different Irradiance Levels (25°C) I-V and P-V Curves at Different Irradiance Levels (25°C) 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
-
With bifacial gain
-

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
-
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
VSUN VSUN705N-132BMHT-DG 705 W 22.70% -0.300 38.5 kg You are here
AIKO-A680-MDE72Mw 680 W 25.20% -0.260 29.0 kg Cooler, lighter, +2.5 pp
AIKO-A675-MDE72Mw 675 W 25.00% -0.260 29.0 kg Cooler, lighter, +2.3 pp
AIKO-A700-MAE78Dw 700 W 25.00% -0.260 34.5 kg Cooler, lighter, +2.3 pp
AIKO-A695-MAE78Dw 695 W 24.90% -0.260 34.5 kg Cooler, lighter, +2.2 pp
AIKO-G670-MCH72Mw 670 W 24.80% -0.260 28.2 kg Cooler, lighter, +2.1 pp
LR7-72HVHF-670M 670 W 24.80% -0.260 28.5 kg Cooler, lighter, +2.1 pp
JKM650-670N-66QL6-BDV (670W class) 670 W 24.80% -0.260 32.5 kg Cooler, lighter, +2.1 pp
CSUN645-132M 645 W 20.76% -0.350 34.5 kg -60 W, -1.9 pp, -5 yr warranty
VSUN655-132BMH-DG 655 W 21.09% -0.340 38.5 kg -50 W, hotter, -1.6 pp
VSUN660-132BMH-DG 660 W 21.25% -0.340 38.5 kg -45 W, hotter, -1.4 pp
VSUN665-132BMH-DG 665 W 21.41% -0.340 38.5 kg -40 W, hotter, -1.3 pp
VSUN670-132BMH-DG 670 W 21.57% -0.340 38.5 kg -35 W, hotter, -1.1 pp
VSUN685N-132BMH-DG 685 W 22.05% -0.300 38.5 kg -20 W, -0.6 pp
VSUN690N-132BMHT-DG 690 W 22.21% -0.300 38.5 kg -15 W, -0.5 pp
AIKO-A805-GRH78Dw 805 W 25.10% -0.260 39.8 kg +100 W, cooler, +2.4 pp
AIKO-A800-GRH78Dw 800 W 24.90% -0.260 39.8 kg +95 W, cooler, +2.2 pp

Found 1390 panels of the same or similar size to this one, within ±10 mm. See them here Found 1400 panels of the same or similar size to this one, within ±25 mm. See them here Found 1400 panels of the same or similar size to this one, within ±50 mm. See them here Found 1432 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
What is N-Type TOPCon cell technology used in the VSUN N-132BMHT-DG series, and how does it differ from classic P-Type cells?
TOPCon (Tunnel Oxide Passivated Contact) is an N-Type cell technology featuring an extra passivation layer that reduces electron recombination on the cell's rear surface. In practice this delivers higher efficiency (above 22%), lower first-year power degradation, and much better resistance to LID, a common issue in P-Type cells. For an investor, this means higher energy yield from the same roof or ground area over the entire lifetime of the installation.
How much extra energy do bifacial VSUN N-132BMHT-DG double-glass panels produce?
The transparent rear glass captures light reflected from the ground, roof, or a bright surface beneath the module. Depending on ambient albedo, mounting height, and surface brightness (such as white gravel or reflective sheeting), the extra energy gain can range from a few percent up to over ten percent compared to a monofacial module. The biggest benefits come with elevated ground-mount racking and flat roofs finished in light-colored materials.
What warranty comes with the VSUN N-132BMHT-DG solar panels?
The manufacturer covers the N-132BMHT-DG series with a 12-year product warranty against material and workmanship defects, plus a 30-year linear power output warranty guaranteeing a high percentage of nominal power after three decades of operation. This is standard for modern N-Type TOPCon modules and puts the series on par with leading premium-segment manufacturers.
Are the VSUN N-132BMHT-DG panels, rated up to 715 Wp, suitable for a residential rooftop, or are they meant for utility-scale solar farms?
These modules measure 2384x1303 mm and weigh around 38.5 kg, making them too large and heavy for typical sloped residential roofs. Their natural application is ground-mount installations, utility-scale solar farms, and large flat commercial or industrial roofs, where maximizing power density per square meter and capturing bifacial gain matter most.
Is VSUN a Tier 1 manufacturer, and does that matter when choosing N-132BMHT-DG panels?
VSUN is not currently listed as a Tier 1 manufacturer under BloombergNEF's classification, which is based on bank project financing rather than product quality. Tier 1 status reflects the scale of bankable financing behind a company, not its technical performance. When choosing panels, it's worth checking IEC and TÜV certifications, the manufacturer's actual warranty terms, and its market stability, rather than relying on Tier status alone.
How do VSUN N-132BMHT-DG panels perform in cold temperatures and low-light conditions?
The module has a low power temperature coefficient of -0.3%/°C, meaning smaller output losses at high operating temperatures than classic P-Type cells, plus better efficiency in cold winter conditions. TOPCon's extra passivation layer also improves response to weak and diffuse light, resulting in more stable energy production on cloudy days and during early morning or evening hours.
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