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Solarwatt Brand review

Panel classic AM 2.0 pure 405 Wp

405 Wp PERC
ComparePV verdict

Light for its output, no clear weak spot

Rank 11,468 of 14,005
Compare panels Datasheet PDF
Power (Wp)
405
Typical for its class
Efficiency (%)
20.90
Typical · median 20.60%
Density (Wp/m²)
209.1
Typical · median 206.2
Temp (%/°C)
-0.330
Strong · top 10%
Weight (kg)
19.7
Strong · 2.3 kg below median
Warranty (yrs)
25
Typical · median 25 yrs

Solarwatt Panel classic AM 2.0 pure - 35 mm panels are an advanced glass-foil solution that combines proven technology with German manufacturing precision. The use of high-efficiency n-type monocrystalline cells translates into significantly higher efficiency and better module performance in diffuse light conditions, which is crucial for the effectiveness of installations in the Polish climate zone. These modules stand out for their exceptional resistance to potential-induced degradation phenomena, ensuring stable energy production for decades without sharp power drops. Thanks to the use of a solid 35 mm thick frame, the entire structure gains high mechanical rigidity, allowing for safe installation in locations exposed to extreme snow loads or strong winds. This is an ideal choice for homeowners and businesses looking for the perfect balance between innovation and reliability. The AM 2.0 pure series effectively addresses the issue of long-term investment profitability by offering an above-average linear power warranty that sets the brand apart from standard competition. They are also distinguished from other products by rigorous quality control and attention to construction details, resulting in maximum fire safety and durability of the entire PV system. Choosing this series guarantees peace of mind and predictable profits from your own solar power plant.

Ranking

954 panels in the segment PERC 400-450 W
Metric This panel Median Position in segment Overall rank
Module efficiency 20.90% 20.60% Typical 10,072
Power density 209.1 206.2 Typical 10,093
Temperature coefficient -0.330 -0.350 Strong · top 10% 8,545
Weight per kWp 48.6 53.0 Strong · top 8% 2,383
Performance warranty 25 yrs 25 yrs Typical 9,798
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

2 positive · 0 caution
Best for

Residential and commercial.

Strengths
48.6 kg per kWp

Top 8% of the PERC 400-450 W segment, against a median of 53.0. Ranked 2,383rd in the whole database.

-0.330 %/°C temperature coefficient

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

Notes from the database
  • At 20.9% efficiency, this panel is on par with typical PERC 400-450W modules
  • At 209.1 W/m² power density, roof space requirements are typical for PERC 400-450W panels
  • At -0.33%/°C, hot weather performance is typical for PERC 400-450W panels
  • At 19.7 kg, this panel is 2.3 kg lighter than PERC 400-450W median (22.0 kg) - easier handling during installation
  • In the top 72% for efficiency among all PERC panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 405 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 20.90 % 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 1000 V Longer strings than 1000 V modules
Dimensions 1708×1134×35 mm · 1.94 m² of roof
Weight 19.7 kg Strong Strong · 2.3 kg below median
Cells 108 · PERC Monocrystalline
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 15 years Hardware defects only
Performance warranty 25 years Typical median 25 yrs · median 25 yrs
End-of-warranty output 84.8 % Equals 331 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
-

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
-

Alternatives

All Solarwatt panels
Filter these
Size
Panel Power Eff. Temp. Weight Difference
Solarwatt Panel classic AM 2.0 pure 405 Wp 405 W 20.90% -0.330 19.7 kg You are here
AIKO-455-MAH54Db 455 W 23.30% -0.260 24.0 kg +50 W, cooler, +2.4 pp
LR5-54HTH-455M 455 W 23.30% -0.290 20.8 kg +50 W, cooler, +2.4 pp
YL455CF54 e/2 455 W 23.30% -0.290 20.3 kg +50 W, +2.4 pp, +5 yr warranty
ESM-455T 455 W 23.30% -0.310 21.0 kg +50 W, +2.4 pp, +5 yr warranty
SE5-54HBC-455W 455 W 23.30% -0.290 20.8 kg +50 W, cooler, +2.4 pp
JST-EDMH-(445-465)W-TD (455W class) 455 W 23.30% -0.300 20.5 kg +50 W, +2.4 pp, +5 yr warranty
LX-455M/182R-96+ GG 455 W 23.30% -0.260 23.5 kg +50 W, cooler, +2.4 pp
SOLARWATT Panel classic AM 2.0 black - 35 mm (395 Wp variant) 395 W 20.40% -0.330 19.7 kg -10 W, -0.5 pp
SOLARWATT Panel classic AM 2.0 pure - 35 mm (400 Wp variant) 400 W 20.70% -0.330 19.7 kg Very close match
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg +105 W, cooler, +4.1 pp
AIKO-A495-MCE54Mw 495 W 24.80% -0.260 21.0 kg +90 W, cooler, +3.9 pp
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg +100 W, cooler, +3.8 pp
AIKO-A490-MCE54Mw 490 W 24.50% -0.260 21.0 kg +85 W, cooler, +3.6 pp
LR7-54HJD-500M 500 W 24.50% -0.240 23.5 kg +95 W, cooler, +3.6 pp
CIPRO-TN9C54M-500W 500 W 24.50% -0.260 21.4 kg +95 W, cooler, +3.6 pp

Found 26 panels of the same or similar size to this one, within ±10 mm. See them here Found 1816 panels of the same or similar size to this one, within ±25 mm. See them here Found 2029 panels of the same or similar size to this one, within ±50 mm. See them here Found 3944 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
What warranty does the Solarwatt Panel classic AM 2.0 pure 35 mm come with?
Solarwatt provides a 15-year product warranty and a 25-year linear power output warranty for this series. This means the manufacturer guarantees a predictable minimum energy yield for a full quarter century, while covering module defects for the first 15 years. This is one of the longer warranty packages available for glass-foil modules on the European market.
Does the PERC technology in the Solarwatt classic AM 2.0 pure perform well under Poland's frequently overcast conditions?
Yes. The PERC cells used in the classic AM 2.0 pure series deliver better efficiency under diffuse and low-irradiance conditions compared to standard BSF cells. In Poland, where overcast skies dominate much of the year, this translates into measurably higher annual energy yields. The 410 Wp peak output is achieved under full irradiance, but the module generates usable power under cloudy skies as well.
How heavy is the Solarwatt classic AM 2.0 pure and is it suitable for a standard pitched roof?
The module weighs approximately 19.7 kg and measures 1,708 x 1,134 mm. The 35 mm aluminum frame provides high mechanical rigidity, making it easy to handle on a rooftop and compatible with standard racking systems used in prosumer installations — whether on ceramic tiles or metal roofing common in Polish residential construction.
Are Solarwatt classic AM 2.0 pure panels resistant to PID (Potential Induced Degradation)?
Yes, the classic AM 2.0 pure series is engineered to resist PID. This is particularly important in string-inverter systems where higher DC voltages can accelerate cell degradation in modules lacking this protection. PID resistance ensures the panels maintain stable output power over decades, directly improving the long-term return on investment.
What snow and wind loads can the Solarwatt classic AM 2.0 pure handle with its 35 mm frame?
The thick 35 mm aluminum frame provides high structural rigidity and resistance to extreme weather. The panels are certified in accordance with European mechanical load standards, enabling safe installation in high-snow-load zones and areas exposed to strong winds. Exact static and dynamic load values are specified in the current manufacturer datasheet.
What is the difference between the Solarwatt classic AM 2.0 pure and the black variant at the same wattage?
The pure version features a standard silver aluminum frame and light-colored backsheet, which promotes slightly lower module operating temperatures. The black version has a black frame and black aesthetics preferred for rooftop installations where visual integration matters. Both variants share the same 410 Wp peak power rating and identical 15/25-year warranty structure.
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