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Solar-Fabrik Brand review

Mono S4 Halfcut BC Full Black 480W

480 Wp Back Contact Bifacial 80%
ComparePV verdict

Middle of its segment, heavy for its output

Rank 2,993 of 14,005
Compare panels Datasheet PDF
Power (Wp)
480
Typical for its class
Efficiency (%)
23.50
Typical · median 23.50%
Density (Wp/m²)
235.2
Typical · median 235.2
Temp (%/°C)
-0.260
Typical · median -0.260
Weight (kg)
25.0
Weak · 1.5 kg above median
Warranty (yrs)
30
Typical · median 30 yrs

Mono S4 Halfcut BC Full Black is a series in which Back Contact technology eliminates visible busbars and ribbons from the front surface, giving the entire module a uniform all-black appearance that suits virtually any roof architecture. The n-type half-cut cells arranged in a bifacial layout capture reflected light from the ground as well, boosting real-world energy yield without compromising the panel's clean look. A proprietary cell design with a passivation layer delivers strong partial shading resistance, so a single leaf, chimney, or antenna doesn't drag down the output of the entire string the way it would in conventional modules. Tempered solar glass on both sides in a double-glass construction increases mechanical rigidity and resistance to microcracks, salt, ammonia, and hail, making the series a solid choice for outbuildings, coastal installations, and industrial sites. A black anodized aluminum frame rounds out the seamless, premium aesthetic. It's built for investors who want long-term reliability, minimal power degradation, and a look tailored to modern, high-end rooftop or ground-mount projects.

Ranking

156 panels in the segment Back Contact 450-500 W
Metric This panel Median Position in segment Overall rank
Module efficiency 23.50% 23.50% Typical 716
Power density 235.2 235.2 Typical 718
Temperature coefficient -0.260 -0.260 Typical 511
Weight per kWp 52.1 48.0 Weak · bottom 11% 5,516
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 · 1 caution
Best for

Residential, commercial, shaded-installations and BIPV.

Not ideal for

Weight-limited structures.

Watch-outs
52.1 kg per kWp

Bottom 11% of the Back Contact 450-500 W segment, against a median of 48.0.

Notes from the database
  • Efficiency of 23.5% matches the Back Contact 450-500W median
  • At 235.2 W/m² power density, roof space requirements are typical for Back Contact 450-500W panels
  • Temperature coefficient of -0.26%/°C matches the Back Contact 450-500W median
  • Weight of 25.0 kg is 1.5 kg above Back Contact 450-500W median (23.5 kg) - verify structural support
  • 80% bifaciality enables rear-side power generation, boosting yield by 4-12% on reflective surfaces

Specifications

Open datasheet PDF
Nominal power (Pmax) 480 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 23.50 % Typical Segment median 23.50%
Vmpp · Impp 33.50 V · 14.33 A Operating point at max power
Voc · Isc 40.53 V · 14.98 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 1800×1134×30 mm · 2.04 m² of roof
Weight 25.0 kg Weak Weak · 1.5 kg above median
Cells 108 · Back Contact Monocrystalline
Bifaciality 80 % Rear output as a share of front
Coefficient Pmax -0.260 %/°C Typical median -0.260 of its segment
Coefficient Voc · Isc -0.200 · 0.050 %/°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

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
-0.260 %/°C against a segment median of -0.260
-
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
Solar-Fabrik Mono S4 Halfcut BC Full Black 480W 480 W 23.50% -0.260 25.0 kg You are here
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg +30 W, cooler, +1.5 pp
AIKO-A495-MCE54Mw 495 W 24.80% -0.260 21.0 kg +15 W, lighter, +1.3 pp
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg +25 W, cooler, +1.2 pp
AIKO-A490-MCE54Mw 490 W 24.50% -0.260 21.0 kg +10 W, lighter, +1.0 pp
LR7-54HJD-500M 500 W 24.50% -0.240 23.5 kg +20 W, cooler, +1.0 pp
CIPRO-TN9C54M-500W 500 W 24.50% -0.260 21.4 kg +20 W, lighter, +1.0 pp
Mono S4 Halfcut BC Full Black 475W 475 W 23.30% -0.260 25.0 kg Very close match
Mono S4 Halfcut BC White 485 485 W 23.75% -0.260 25.0 kg +0.2 pp

Found 197 panels of the same or similar size to this one, within ±10 mm. See them here Found 201 panels of the same or similar size to this one, within ±25 mm. See them here Found 1712 panels of the same or similar size to this one, within ±50 mm. See them here Found 4014 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
What is Back Contact technology in the Solar-Fabrik Mono S4 Halfcut BC Full Black panels, and is it worth paying extra for?
Back Contact means all electrical connections on the cell sit on its rear side, giving the front surface a uniform black look with no visible grids or ribbons. Beyond aesthetics, this design increases the cell's light-exposed active area, boosting efficiency to 23.5% and power output up to 480 Wp. The premium makes sense for visually exposed roofs or installations with limited mounting space.
What warranty comes with Solar-Fabrik Mono S4 Halfcut BC Full Black panels?
Solar-Fabrik, headquartered in Germany, provides a 30-year product warranty and a 30-year power output warranty. This is among the longest warranty coverage available on the PV market, well beyond the typical 10-12 year product warranty and 25-year power warranty offered by most competing modules, resulting in lower long-term power degradation and greater investment security.
Do the bifacial cells in the Mono S4 BC Full Black require special mounting to work?
No, the panel functions normally even in a standard sloped-roof installation, but full bifacial potential is realized with elevated mounting that leaves a gap beneath the module, such as ground-mount racking, carports, or flat roofs with a bright surface below. Under typical conditions, the rear-side gain adds roughly a few to over ten percent extra yield, depending on ground albedo and mounting height.
Are Solar-Fabrik BC Full Black panels suitable for coastal or industrial installations exposed to salt and ammonia?
Yes, the double tempered glass-glass construction with solar glass on both sides delivers high resistance to salt corrosion, ammonia vapors (common near livestock farms), and hail, backed by the manufacturer's environmental durability certifications. This makes the series a popular choice for agricultural buildings and coastal installations, where classic backsheet panels degrade faster.
How many Mono S4 BC Full Black 480 Wp panels are needed for a typical 6-8 kWp residential system?
At 480 Wp per module, a 6 kWp system needs roughly 12-13 panels, while an 8 kWp system needs about 16-17. Thanks to the high single-panel wattage and 23.5% efficiency, you can hit the target system capacity with fewer modules than standard 400-420 Wp panels, reducing the required roof area and shortening installation time.
How do Solar-Fabrik BC Full Black panels perform in cold winter temperatures?
The n-type silicon cells used in this series have a low power temperature coefficient, meaning the panel actually operates at higher efficiency in cold ambient temperatures than during summer heat, with output drops only occurring from cell overheating. The passivation layer construction also limits losses from partial shading, such as snow lingering along the module edge.
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