Skip to main content
Solar-Fabrik Brand review

Mono S4 HC V 400 BF-DG

400 Wp N-type Bifacial
ComparePV verdict

Middle of its segment, heavy for its output

Rank 9,838 of 14,005
Compare panels Datasheet PDF
Power (Wp)
400
Weak · bottom 1%
Efficiency (%)
20.02
Weak · bottom 4%
Density (Wp/m²)
200.2
Weak · bottom 4%
Temp (%/°C)
-0.290
Typical · median -0.290
Weight (kg)
24.0
Weak · 2.0 kg above median
Warranty (yrs)
30
Typical · median 30 yrs

The Solar-Fabrik Mono S4 Halfcut | Chroma Orange series represents a groundbreaking solution for aesthetically integrating photovoltaic systems with traditional architecture. Thanks to the front glass tinted in a shade similar to RAL 8004 (copper brown), the modules seamlessly blend into roofs covered with red or terracotta tiles - without compromising on aesthetics. This solution is primarily designed for historic buildings and those protected by conservation regulations, where standard black panels would be aesthetically unacceptable. The half-cut cell technology reduces resistive losses and minimizes the impact of partial shading on the overall performance of the system. The double-glazed construction provides exceptional mechanical strength, airtightness, and a significant fire safety advantage - the glass does not support combustion, which is particularly important in buildings protected by conservation regulations. The matte, anti-reflective coating of the glass reduces glare, and the aluminum frame in RAL 8011 color complements the overall warm color scheme of the module. The 30-year product and performance warranty confirms the longevity of this investment. The panel is intended for architects, developers, and owners of prestigious properties who prioritize both aesthetics and energy efficiency.

Ranking

321 panels in the segment N-type 400-450 W
Metric This panel Median Position in segment Overall rank
Module efficiency 20.02% 21.91% Weak · bottom 4% 12,182
Power density 200.2 218.3 Weak · bottom 4% 12,189
Temperature coefficient -0.290 -0.290 Typical 2,165
Weight per kWp 60.0 51.2 Weak · bottom 3% 12,326
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

Residential, shaded-installations and BIPV.

Not ideal for

Weight-limited structures, roofs where every square metre has to count and tight roof space.

Watch-outs
60.0 kg per kWp

Bottom 3% of the N-type 400-450 W segment, against a median of 51.2. Ranked 12,326th in the whole database.

200.2 watts per square metre

Bottom 4% of the N-type 400-450 W segment, against a median of 218.3. Ranked 12,189th in the whole database.

20.02% module efficiency

Bottom 4% of the N-type 400-450 W segment, against a median of 21.91%. Ranked 12,182nd in the whole database.

Notes from the database
  • Module efficiency of 20.0% is 1.9pp below average for N-type 400-450W panels (median: 21.9%)
  • Power density of 200.2 W/m² is 18.1 W/m² below N-type 400-450W median (218.3 W/m²) - needs more roof space
  • At -0.29%/°C, hot weather performance is typical for N-type 400-450W panels
  • At 24.0 kg, this panel is 2.0 kg heavier than the N-type 400-450W median (22.0 kg) - more demanding for installation crews
  • Ranked #12182 out of 14005 panels for efficiency in the database

Specifications

Open datasheet PDF
Nominal power (Pmax) 400 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 20.02 % Weak Segment median 21.91%
Vmpp · Impp 30.48 V · 13.13 A Operating point at max power
Voc · Isc 35.36 V · 13.60 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 1762×1134×30 mm · 2.00 m² of roof
Weight 24.0 kg Weak Weak · 2.0 kg above median
Cells 96 · N-type Monocrystalline
Coefficient Pmax -0.290 %/°C Typical median -0.290 of its segment
Coefficient Voc · Isc -0.250 · 0.046 %/°C
NOCT 45 °C At 800 W/m², 20 °C ambient
Product warranty 30 years Hardware defects only
Performance warranty 30 years Typical median 30 yrs · median 30 yrs
End-of-warranty output 87.4 % Equals 350 W guaranteed
Degradation 1.00 → 0.40 % 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
-0.290 %/°C against a segment median of -0.290
-
Filter these
Size
Panel Power Eff. Temp. Weight Difference
Solar-Fabrik Mono S4 HC V 400 BF-DG 400 W 20.02% -0.290 24.0 kg You are here
LX-440M/182-108+GG 440 W 23.07% -0.240 23.6 kg +40 W, cooler, +3.1 pp
JST-EDMH-(445-465)W-TD (450W class) 450 W 23.05% -0.300 20.5 kg +50 W, lighter, +3.0 pp
QNN182-HG450-54 450 W 23.04% -0.290 24.0 kg +50 W, +3.0 pp
HY440-N108BDD 450 W 23.04% -0.300 23.5 kg +50 W, hotter, +3.0 pp
NLBK-27-450 450 W 23.04% -0.300 22.9 kg +50 W, lighter, +3.0 pp
RS41-450NBG-E3 450 W 23.04% -0.290 24.5 kg +50 W, +3.0 pp
Mono S4 Halfcut Chroma Orange 420W 420 W 21.02% -0.290 24.0 kg +20 W, +1.0 pp
Mono S4 Halfcut Trend Full Black 445 W 445 W 22.30% -0.290 24.9 kg +45 W, +2.3 pp
Mono S4 Halfcut Trend Full Black 450 W 450 W 22.50% -0.290 24.9 kg +50 W, +2.5 pp
Mono S4 Halfcut Trend White 455W 455 W 22.80% -0.310 24.9 kg +55 W, hotter, +2.8 pp
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg +110 W, cooler, +5.0 pp
AIKO-A495-MCE54Mw 495 W 24.80% -0.260 21.0 kg +95 W, lighter, +4.8 pp
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg +105 W, cooler, +4.7 pp
AIKO-A490-MCE54Mw 490 W 24.50% -0.260 21.0 kg +90 W, lighter, +4.5 pp
LR7-54HJD-500M 500 W 24.50% -0.240 23.5 kg +100 W, cooler, +4.5 pp
CIPRO-TN9C54M-500W 500 W 24.50% -0.260 21.4 kg +100 W, cooler, +4.5 pp

Found 1395 panels of the same or similar size to this one, within ±10 mm. See them here Found 1425 panels of the same or similar size to this one, within ±25 mm. See them here Found 3614 panels of the same or similar size to this one, within ±50 mm. See them here Found 3962 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
Can the Solar-Fabrik Mono S4 Halfcut Chroma Orange be installed on a heritage or conservation-protected building?
Yes, this series was specifically designed for such applications. The colored front glass in a shade close to RAL 8004 (copper brown) allows modules to blend visually with roofs covered in red or terracotta tiles. The all-glass construction does not support combustion (fire class A, TÜV-certified), which is often a mandatory condition for obtaining heritage authority approval. It is one of the few PV modules on the market that simultaneously meets both aesthetic and fire-safety requirements for listed buildings.
What is the warranty on Solar-Fabrik Mono S4 Halfcut Chroma Orange panels?
The manufacturer offers a 30-year product warranty and a 30-year linear performance warranty. Throughout that period, the module must retain specified power output parameters, and any manufacturing defects are covered by repair or replacement. A dual 30-year warranty is rare in the market and significantly improves the investment's financial case. Solar-Fabrik is headquartered in Germany, which simplifies warranty claims for customers across Europe.
What does N-type TOPCon technology mean in the Chroma Orange panels, and why is it better than older PERC cells?
N-type TOPCon (Tunnel Oxide Passivated Contact) cells degrade more slowly over time and perform better under low-light conditions compared to older PERC technology. The temperature coefficient is just -0.29%/°C, meaning the panel loses less power on hot days than typical modules. In the Chroma Orange series, 96 half-cut TOPCon cells achieve 20.02% efficiency at 400 Wp. This translates to a real advantage in climates with frequent overcast days and diffuse irradiance.
How do the Solar-Fabrik Chroma Orange panels perform under partial shading — for example from a chimney or dormer window?
The half-cut cell design means that shading one part of the module does not block the other half's output, so power losses under partial shading are significantly lower than in standard full-cell modules. N-type TOPCon technology further reduces the PID (Potential Induced Degradation) effect and improves performance under diffuse light. This is especially important on heritage building rooftops, where chimneys and decorative architectural elements frequently cast shadows.
How much does the Solar-Fabrik Mono S4 Halfcut Chroma Orange weigh, and is installation on an older roof problematic?
The panel weighs approximately 24 kg with dimensions of 1,762 × 1,134 × 30 mm. The glass-glass construction makes it heavier than a typical polymer-backsheet module, requiring a robust roof structure and at least two installers. Before mounting, it is advisable to have the roof's load-bearing capacity assessed, especially on older heritage buildings. The high resistance to snow loads (up to 5,400 Pa) and hail (Class 4 per IEC) fully offsets the additional weight.
Is the Solar-Fabrik Chroma Orange a bifacial module, and what does that mean in practice?
Yes, the Chroma Orange is a bifacial module, meaning the rear glass also generates electricity from reflected light. In practice, with a light-colored surface beneath (pale roofing, concrete, gravel), energy yield can exceed the nameplate 400 Wp by several percent. The bifacial gain depends on the albedo of the surface below the array, so the benefit is greatest with lighter substrates — whether on a rooftop or a ground-mounted installation.
Add to compare