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VSUN Brand review

VSUN595-120BMH-DG

595 Wp PERC Bifacial 70%
ComparePV verdict

Warranty pick, heavy for its output

Rank 3,040 of 14,005
Compare panels Datasheet PDF
Power (Wp)
595
Strong · top 6%
Efficiency (%)
21.02
Typical · median 21.29%
Density (Wp/m²)
210.2
Typical · median 212.9
Temp (%/°C)
-0.340
Typical · median -0.350
Weight (kg)
36.4
Weak · 5.6 kg above median
Warranty (yrs)
30
Strong · top 25%

The VSUN 120BMH-DG series consists of advanced bifacial dual glass modules that redefine efficiency standards in demanding environmental conditions. The use of half-cut cell technology combined with multi-busbar connections significantly reduces energy losses resulting from internal resistance and partial shading. The dual-glass construction provides exceptional resistance to potential-induced degradation and extreme atmospheric factors, guaranteeing parameter stability for decades. These panels effectively solve the problem of limited installation space thanks to the ability to harvest additional energy from both sides of the module, which is crucial for installations on high-albedo surfaces. This solution is dedicated to commercial investors and farm developers who prioritize maximizing area yields while maintaining the highest class of fire safety. Compared to the competition, the VSUN 120BMH-DG stands out with its low temperature coefficient and increased mechanical strength against snow and wind loads. Thanks to the precise matching of components, these modules minimize the risk of micro-cracks, offering reliability that translates directly into a faster return on investment in professional energy systems.

Ranking

589 panels in the segment PERC 550-600 W
Metric This panel Median Position in segment Overall rank
Module efficiency 21.02% 21.29% Typical 9,696
Power density 210.2 212.9 Typical 9,670
Temperature coefficient -0.340 -0.350 Typical 8,778
Weight per kWp 61.2 52.7 Weak · bottom 4% 12,610
Performance warranty 30 yrs 27 yrs Strong · top 25% 21
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

1 positive · 1 caution
Best for

Commercial, utility-scale and shaded-installations.

Not ideal for

Weight-limited structures.

Strengths
30 year performance warranty

Top 25% of the PERC 550-600 W segment, against a median of 27 yrs.

Watch-outs
61.2 kg per kWp

Bottom 4% of the PERC 550-600 W segment, against a median of 52.7. Ranked 12,610th in the whole database.

Notes from the database
  • Efficiency of 21.0% matches the PERC 550-600W median
  • Power density of 210.2 W/m² matches the PERC 550-600W median
  • At -0.34%/°C, hot weather performance is typical for PERC 550-600W panels
  • Weight of 36.4 kg is 5.6 kg above PERC 550-600W median (30.8 kg) - verify structural support
  • Bifaciality factor of 70% can add 4-10% extra yield with reflective mounting surface

Specifications

Open datasheet PDF
Nominal power (Pmax) 595 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 21.02 % Typical Segment median 21.29%
Vmpp · Impp 34.21 V · 17.40 A Operating point at max power
Voc · Isc 41.30 V · 18.51 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 2172×1303×35 mm · 2.83 m² of roof
Weight 36.4 kg Weak Weak · 5.6 kg above median
Cells 120 · PERC Monocrystalline
Bifaciality 70 % Rear output as a share of front
Coefficient Pmax -0.340 %/°C Typical median -0.350 of its segment
Coefficient Voc · Isc -0.250 · 0.040 %/°C
NOCT 45 °C At 800 W/m², 20 °C ambient
Product warranty 25 years Hardware defects only
Performance warranty 30 years Strong top 25% · median 27 yrs
End-of-warranty output 85.0 % Equals 505 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
-0.340 %/°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
VSUN VSUN595-120BMH-DG 595 W 21.02% -0.340 36.4 kg You are here
AIKO-A645-MAE72Mw 645 W 25.00% -0.260 27.0 kg Cooler, lighter, +4.0 pp
LR7-60HVH-560M 560 W 24.80% -0.260 25.0 kg Cooler, lighter, +3.8 pp
AIKO-A640-MAE72Mw 640 W 24.80% -0.260 27.0 kg Cooler, lighter, +3.8 pp
LR7-60HVH-555M 555 W 24.60% -0.260 25.0 kg Cooler, lighter, +3.6 pp
AIKO-A635-MAE72Mw 635 W 24.60% -0.260 27.0 kg Cooler, lighter, +3.6 pp
VSUN600-120BMH-DG 600 W 21.20% -0.340 36.4 kg Very close match
VSUN605-120BMH-DG 605 W 21.38% -0.340 36.4 kg +10 W, +0.4 pp
VSUN610-120BMH-DG 610 W 21.55% -0.340 36.4 kg +15 W, +0.5 pp
GKA210N120 680 W 24.03% -0.340 28.0 kg +85 W, lighter, +3.0 pp
GKA210N120-675 675 W 23.85% -0.340 28.0 kg +80 W, lighter, +2.8 pp
QN-670HJT-01 670 W 23.70% -0.240 35.5 kg +75 W, cooler, +2.7 pp
GKA210N120-670 670 W 23.67% -0.340 28.0 kg +75 W, lighter, +2.7 pp
QN-665HJT-01 665 W 23.50% -0.240 35.5 kg +70 W, cooler, +2.5 pp
GKA210N120-665 665 W 23.50% -0.340 28.0 kg +70 W, lighter, +2.5 pp
SPDG660-N120M12 660 W 23.32% -0.300 34.2 kg +65 W, cooler, +2.3 pp
NS-660MH-120 660 W 23.32% -0.290 31.0 kg +65 W, lighter, +2.3 pp

Found 497 panels of the same or similar size to this one, within ±10 mm. See them here Found 502 panels of the same or similar size to this one, within ±25 mm. See them here Found 502 panels of the same or similar size to this one, within ±50 mm. See them here Found 506 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
What does bifacial dual glass technology mean in the VSUN 120BMH-DG panels and how much extra energy does it produce?
Bifacial dual glass means the module generates power from both the front and rear sides, thanks to a glass rear layer instead of a traditional backsheet. Depending on the ground albedo (e.g., light gravel, white roofing, snow), the additional rear-side yield can range from a few percent up to well over ten percent more annual energy compared to a standard monofacial panel of the same rated power.
What warranty do VSUN 120BMH-DG panels come with?
The manufacturer offers a 25-year product warranty covering material and workmanship defects, along with a 30-year power output warranty guaranteeing a minimum performance level even after decades of use. This is longer than the market standard of a 10-12 year product warranty and 25-year power warranty.
Is the 610 Wp VSUN 120BMH-DG panel suitable for residential or commercial installations?
The 610 Wp dual glass module is designed primarily for commercial, industrial, and utility-scale solar farm installations, where maximizing energy yield from limited roof or land area is the priority. Due to its large size and weight, mounting on typical sloped residential roofs is less common and requires a reinforced support structure.
How do the half-cut PERC cells in the VSUN 120BMH-DG differ from standard full-size cells?
Half-cut cells are cut in half, reducing resistive losses and improving partial shading tolerance - if one half of the panel is shaded, the other half keeps operating efficiently. Combined with PERC technology, which reflects unused photons back into the cell, the module achieves higher energy conversion efficiency than older designs using full-size cells without a passivation layer.
Do VSUN 120BMH-DG panels perform well in cold weather and under heavy snow loads?
Yes, the dual glass construction gives the module a low power temperature coefficient, so efficiency drops more slowly as operating temperature rises, while cold weather itself does not reduce silicon cell performance. The double glass also stiffens the frame, giving higher mechanical resistance to snow and wind loads compared to panels with a plastic backsheet.
Is VSUN, as a non-Tier 1 manufacturer, a reliable choice for a large commercial installation?
Tier 1 status is a bankability classification from BloombergNEF, not a technical quality rating - many solid manufacturers fall outside this list for formal reasons like project financing scale. VSUN has technical and certification infrastructure headquartered in Germany, and its long warranties (25/30 years) reflect confidence in module durability; it's still worth verifying TÜV and IEC certifications for the specific project.
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