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AmoSolar Brand review

AS385M6-120

385 Wp PERC
ComparePV verdict

Efficiency leader, no clear weak spot

Rank 12,024 of 14,005
Compare panels Datasheet PDF
Power (Wp)
385
Typical for its class
Efficiency (%)
21.12
Strong · top 1%
Density (Wp/m²)
211.2
Strong · top 1%
Temp (%/°C)
-0.350
Typical · median -0.350
Weight (kg)
20.5
Typical · median 21.4 kg
Warranty (yrs)
25
Typical · median 25 yrs

The AmoSolar AS370-395M6-120 series consists of monocrystalline half-cut modules with a 120-cell architecture, designed to operate reliably even under less-than-ideal rooftop conditions. Dividing the cells in half reduces losses due to conduction and improves performance under partial shading - a practical advantage in installations with chimneys, skylights, or trees nearby. The use of PERC technology enhances the utilization of diffuse light, which is important in the Polish climate, where frequent cloud cover and variable sunshine are common. These modules offer a high efficiency compared to standard monofacial modules and are easy to integrate into typical rooftop layouts, making it possible to optimize the design without compromising aesthetics. Another advantage is their resistance to environmental conditions - the robust construction and sealed junction box ensure reliable operation. This makes them a good choice for single-family homes, small businesses, and hybrid and off-grid installations, where predictable energy production and reliability are key.

Ranking

579 panels in the segment PERC 350-400 W
Metric This panel Median Position in segment Overall rank
Module efficiency 21.12% 19.90% Strong · top 1% 9,255
Power density 211.2 199.0 Strong · top 1% 9,250
Temperature coefficient -0.350 -0.350 Typical 10,419
Weight per kWp 53.2 55.8 Typical 7,083
Performance warranty 25 yrs 25 yrs Typical 9,798
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

7 positive · 4 caution
Best for

Residential, off-grid and shaded-installations.

Strengths
21.12% module efficiency

Top 1% of the PERC 350-400 W segment, against a median of 19.90%. Ranked 9,255th in the whole database.

211.2 watts per square metre

Top 1% of the PERC 350-400 W segment, against a median of 199.0. Ranked 9,250th in the whole database.

What owners get
Efficiency of 21.67% – better than Meyer Burger Black

The top-performing AS395 variant achieves an efficiency of 21.67%, surpassing Meyer Burger Black (21.5%) and significantly outperforming Waaree EDO PRO (19.83%). This places the series among the leaders in the monofacial PERC segment for M6-120 format.

Half-cut architecture (120 cells)

Dividing the cells in half reduces resistive losses by approximately 50% compared to full-sized cells and limits the impact of partial shading on the overall module's performance – a practical advantage for roofs with chimneys, dormer windows, or nearby vegetation.

6 power variants (370–395 Wp)

The wide range of power outputs, with six different options, allows for precise adaptation of the design to the available roof space and optimization of string configurations without compromising the layout of the modules.

PERC – Maximizing the Use of Diffuse Light

Rear passivation of PERC improves the absorption of infrared and diffuse radiation compared to standard mono-BSF cells. This has a measurable impact in the Polish climate, where days with full sunlight represent a small portion of the annual energy balance.

25-year linear warranty on power

The manufacturer guarantees a linear performance warranty for 25 years, which is the industry standard and is acceptable to banks and insurers for both prosumer and small commercial installations.

Trade-offs
No Tier-1 BNEF status

AmoSolar does not appear on the list of bankable manufacturers compiled by BloombergNEF (Q1 2026), which could make it difficult for banks to finance projects and may also reduce the perceived credibility of large commercial installations or when selling properties with installed systems.

Product warranty is only 12 years.

The 12-year product warranty is weaker than those offered by companies like Meyer Burger (25 years) or the standard 15-year warranties from leading Tier-1 manufacturers (JA Solar, Trina). With a lifespan of 25+ years, the risk of lacking service and support from the manufacturer increases.

P-type PERC technology, not N-type TOPCon/HJT

P-type PERC cells exhibit a higher LID (Light-Induced Degradation) rate and a poorer temperature coefficient compared to N-type cells. Over a 25-year lifespan, this could translate to a lower cumulative energy yield compared to newer technologies available in the same price range.

Lack of bifaciality (single-sided)

The module does not utilize the albedo effect – typically producing an additional 5–20% of power compared to bifacial modules (e.g., HT-SAAE Double Glass TOPCon with comparable products). This limits the potential for increased energy yield under favorable conditions (reflective surface, gravel, snow).

Notes from the database
  • 21.1% module efficiency - 1.7pp better than the PERC 0-400W median of 19.4%
  • 211.2 W/m² power density - 16.8 W/m² more than PERC 0-400W median (194.4 W/m²), more power per roof area
  • Temperature coefficient of -0.35%/°C matches the PERC 0-400W median
  • Ranked #9255 out of 14005 panels for efficiency in the database

Specifications

Open datasheet PDF
Nominal power (Pmax) 385 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 21.12 % Strong Segment median 19.90%
Vmpp · Impp 35.38 V · 10.89 A Operating point at max power
Voc · Isc 41.05 V · 11.46 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 1756×1038×35 mm · 1.82 m² of roof
Weight 20.5 kg Typical Typical · median 21.4 kg
Cells 120 · PERC Monocrystalline
Coefficient Pmax -0.350 %/°C Typical median -0.350 of its segment
Coefficient Voc · Isc -0.272 · 0.044 %/°C
NOCT 45 °C At 800 W/m², 20 °C ambient
Product warranty 12 years Hardware defects only
Performance warranty 25 years Typical median 25 yrs · median 25 yrs
End-of-warranty output 84.8 % Equals 316 W guaranteed
Degradation 2.00 → 0.55 % 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
-

Degradation from this panel's own datasheet figures. No inverter, soiling or shading losses.

Heat losses
-0.350 %/°C against a segment median of -0.350
-

Alternatives

All AmoSolar panels
Filter these
Size
Panel Power Eff. Temp. Weight Difference
AmoSolar AS385M6-120 385 W 21.12% -0.350 20.5 kg You are here
GKA210M340W 340 W 23.00% - 16.2 kg -45 W, +1.9 pp, +5 yr warranty
GKA210M360W 360 W 23.00% - 16.2 kg Lighter, +1.9 pp, +5 yr warranty
GKA210M380W (1/4*4*38) 380 W 23.00% - 17.1 kg Lighter, +1.9 pp, +5 yr warranty
GKA210M400W (1/2*4*20) 400 W 23.00% - 18.0 kg Lighter, +1.9 pp, +5 yr warranty
GKA210M400W (1/4*4*40) 400 W 23.00% - 18.0 kg Lighter, +1.9 pp, +5 yr warranty
GKA210M380W (1/2*4*19) 380 W 23.00% - 17.1 kg Lighter, +1.9 pp, +5 yr warranty
LX-435M/182-108+ GG 435 W 22.81% -0.240 23.6 kg +50 W, cooler, +1.7 pp
JT435SYk(B) 435 W 22.70% -0.240 23.0 kg +50 W, cooler, +1.6 pp
SPR-MAX3-430-R 430 W 22.70% -0.270 21.2 kg Cooler, +1.6 pp, +15 yr warranty
LX-435M/182-108+ 435 W 22.61% -0.300 21.5 kg +50 W, cooler, +1.5 pp
AS370M6-120 370 W 20.30% -0.350 20.5 kg -15 W, -0.8 pp
AS375M6-120 375 W 20.57% -0.350 20.5 kg -10 W, -0.6 pp
AS380M6-120 380 W 20.85% -0.350 20.5 kg -0.3 pp
AS390M6-120 390 W 21.40% -0.350 20.5 kg +0.3 pp
AS395M6-120 395 W 21.67% -0.350 20.5 kg +10 W, +0.6 pp
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg +125 W, cooler, +3.9 pp

Found 210 panels of the same or similar size to this one, within ±10 mm. See them here Found 271 panels of the same or similar size to this one, within ±25 mm. See them here Found 332 panels of the same or similar size to this one, within ±50 mm. See them here Found 4151 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
What warranty does the AmoSolar AS370-395M6-120 series carry?
The AmoSolar AS370-395M6-120 series comes with a 12-year product warranty covering material and workmanship defects, along with a 25-year linear power output warranty. This means the manufacturer guarantees a specified minimum energy production level for a full quarter century. It is worth noting, however, that AmoSolar is not classified as a Tier 1 manufacturer — a factor that should be weighed when assessing long-term risk.
Do the AmoSolar AS370-395M6-120 panels perform well under partial roof shading?
Yes. The half-cut cell technology used in this series splits each cell into two halves, significantly reducing losses under partial shading caused by chimneys, dormers, or trees. The module operates as two independent half-strings, so shading one section does not cripple the entire panel. This is a practical advantage in residential installations in Poland, where a perfectly unobstructed roof orientation is rarely achievable.
What are the dimensions and weight of the AmoSolar AS395M6-120 panel, and is it straightforward to install on a typical roof?
The AS370-395M6-120 module measures 1756 × 1038 × 35 mm and weighs approximately 20.5 kg. This is a standard M6 format in a 120-cell configuration, compatible with the racking systems commonly used for pitched-roof installations. The sub-21 kg weight simplifies handling for installation crews and does not overstress standard roof truss structures.
What is PERC technology in AmoSolar panels, and does it justify the price premium?
PERC (Passivated Emitter Rear Contact) adds a passivation layer to the rear surface of the cell, reflecting photons that would otherwise pass through the silicon absorber layer and giving them a second opportunity to be converted into electrical energy. In practice, this translates to improved efficiency under diffuse light and overcast conditions — a meaningful benefit in Poland's climate. The AS370-395M6-120 series achieves module efficiency of up to 21.67%, which is a strong result for a standard monofacial format.
Is the AmoSolar AS370-395M6-120 suitable for off-grid or hybrid installations?
Yes, this series is explicitly recommended for hybrid and off-grid applications. A peak power output of up to 395 Wp, combined with stable performance under variable irradiance conditions thanks to PERC and half-cut technology, makes these modules well-suited for pairing with hybrid inverters and energy storage systems. The compact form factor also simplifies array sizing when matching panel count to the MPPT input specifications of off-grid inverters typically used in single-family homes.
How does the AmoSolar AS370-395M6-120 series differ from newer bifacial panels?
The AS370-395M6-120 is a monofacial module — it generates electricity exclusively from the front cell surface. Newer bifacial panels additionally harvest 10–25% more energy from light reflected off the ground or mounting surface, which makes sense on white facades or ground-mount systems with a high-albedo substrate. On a typical dark rooftop, however, bifaciality yields minimal gain, making the AS370-395M6-120 a practical and more cost-effective choice for rooftop installations.
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