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Solarwatt Brand review

Solarwatt Panel vision AM 4.0 pure 405 Wp

405 Wp PERC Bifacial 2000%
ComparePV verdict

Strong in heat, heavy for its output

Rank 9,111 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)
-0.330
Strong · top 10%
Weight (kg)
25.4
Weak · 3.4 kg above median
Warranty (yrs)
30
Strong · top 17%

The Solarwatt Panel vision AM 4.0 pure series consists of advanced glass-glass modules that redefine durability standards in residential and commercial photovoltaic installations. Thanks to the use of a double layer of tempered glass, the cells are almost completely isolated from negative external factors, which effectively eliminates the problem of micro-cracks and degradation caused by moisture or temperature fluctuations. The use of efficient bifacial technology enables additional energy yields from light reflected from the ground, making these panels an ideal choice for ground-mounted structures and roofs with light-colored coverings. This construction provides exceptional resistance to extreme snow loads and gusty winds, guaranteeing the stability of the system for decades of use. By choosing this series, the investor receives a product with maximum longevity that maintains high efficiency much longer than traditional modules with a backsheet film. This solution is dedicated to users seeking uncompromising fire safety, as the fire-resistant glass layers form a natural protective barrier. Solarwatt Panel vision AM 4.0 pure stands out from the competition with European precision standards and full resistance to ammonia and sea salt, allowing for trouble-free installation in demanding agricultural and coastal environments. It is an optimal investment for those prioritizing long-term profits and maximum capital protection.

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 -0.330 -0.350 Strong · top 10% 8,545
Weight per kWp 62.7 53.0 Weak · bottom 5% 12,814
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

2 positive · 1 caution
Best for

Residential and commercial.

Not ideal for

Weight-limited structures.

Strengths
-0.330 %/°C temperature coefficient

Top 10% of the PERC 400-450 W segment, against a median of -0.350.

30 year performance warranty

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

Watch-outs
62.7 kg per kWp

Bottom 5% of the PERC 400-450 W segment, against a median of 53.0. Ranked 12,814th in the whole database.

Notes from the database
  • Efficiency of 20.7% matches the PERC 400-450W median
  • At 207.4 W/m² power density, roof space requirements are typical for PERC 400-450W panels
  • Temperature coefficient of -0.33%/°C matches the PERC 400-450W median
  • At 25.4 kg (3.4 kg above PERC 400-450W median of 22.0 kg), requires checking roof load capacity
  • #10764 for efficiency, #8545 for temperature performance out of 14005 panels

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 30.90 V · 13.10 A Operating point at max power
Voc · Isc 37.20 V · 14.00 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 1722×1134×35 mm · 1.95 m² of roof
Weight 25.4 kg Weak Weak · 3.4 kg above median
Cells 108 · PERC Monocrystalline
Bifaciality 2000 % Rear output as a share of front
Coefficient Pmax -0.330 %/°C Strong top 10% of its segment
Coefficient Voc · Isc -0.250 · 0.050 %/°C
NOCT 44 °C At 800 W/m², 20 °C ambient
Product warranty 30 years Hardware defects only
Performance warranty 30 years Strong top 17% · median 25 yrs
End-of-warranty output 87.0 % Equals 352 W guaranteed

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
-0.330 %/°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.

Alternatives

All Solarwatt panels
Filter these
Size
Panel Power Eff. Temp. Weight Difference
Solarwatt Solarwatt Panel vision AM 4.0 pure 405 Wp 405 W 20.70% -0.330 25.4 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, +2.6 pp, -5 yr warranty
YL455CF54 e/2 455 W 23.30% -0.290 20.3 kg +50 W, lighter, +2.6 pp
ESM-455T 455 W 23.30% -0.310 21.0 kg +50 W, lighter, +2.6 pp
SE5-54HBC-455W 455 W 23.30% -0.290 20.8 kg +50 W, +2.6 pp, -5 yr warranty
JST-EDMH-(445-465)W-TD (455W class) 455 W 23.30% -0.300 20.5 kg +50 W, lighter, +2.6 pp
LX-455M/182R-96+ GG 455 W 23.30% -0.260 23.5 kg +50 W, cooler, +2.6 pp
SOLARWATT Panel vision AM 4.0 black (400 Wp variant) 400 W 20.50% -0.330 25.4 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
Is the Solarwatt Panel vision AM 4.0 pure series still available for purchase?
The Solarwatt Panel vision AM 4.0 pure series has been discontinued and is no longer actively manufactured. If you require similar glass-glass bifacial PERC performance backed by a 30-year warranty, consider the newer Solarwatt Panel vision AM 4.5 series, which carries on the same proven technology at higher wattages.
What warranty does the Solarwatt Panel vision AM 4.0 pure come with?
Solarwatt backs the vision AM 4.0 pure with a 30-year product warranty and a 30-year linear power warranty. This guarantees that the 405 Wp module will continue producing energy above the manufacturer-specified minimum output for three full decades — one of the longest warranty terms available in the residential and commercial PV market.
What is bifacial technology and when does it pay off with the vision AM 4.0 pure?
A bifacial module harvests energy from both sides: direct irradiance on the front and reflected light on the rear surface. In ground-mount systems or rooftops with light-colored surfaces, the bifacial gain typically ranges from 5 to 25% compared to a monofacial panel. The vision AM 4.0 pure combines bifacial PERC cells with a glass-glass construction that maximizes rear-side transmissivity, boosting overall energy yield.
Why is the glass-glass vision AM 4.0 pure more durable than a standard backsheet module?
In backsheet panels, moisture can penetrate through the polymer rear layer over time, causing delamination and micro-cracks in PERC cells. The glass-glass design of the vision AM 4.0 pure encapsulates the cells between two tempered glass layers, sealing them against moisture ingress, UV exposure, and thermal cycling. The result is a lower annual degradation rate and sustained efficiency across the full 30-year warranty period.
Can the Solarwatt Panel vision AM 4.0 pure handle heavy snow loads in Central European climates?
Yes. The module is certified to a snow load of 5,400 Pa with a test load of 8,100 Pa, exceeding requirements for most European locations including high-snowfall mountain areas. The rigid glass-glass frame provides additional structural stiffness compared to backsheet modules subjected to the same mechanical stress, making it a reliable choice for demanding winter conditions.
Are the vision AM 4.0 pure modules suitable for coastal sites or agricultural installations?
Yes. The vision AM 4.0 pure holds IEC 61701 (salt mist corrosion) and IEC 62716 (ammonia resistance) certifications, making it a solid choice for coastal environments and livestock farms where airborne ammonia could degrade modules lacking those ratings. German manufacturing standards further support long-term reliability in chemically demanding conditions.
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