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Solar-Fabrik Brand review

Mono S4 Halfcut Chroma Orange 420W

420 Wp TOPCon Bifacial 80%
ComparePV verdict

Middle of its segment, modest efficiency

Rank 8,124 of 14,005
Compare panels Datasheet PDF
Power (Wp)
420
Weak · bottom 16%
Efficiency (%)
21.02
Weak · bottom 6%
Density (Wp/m²)
210.2
Weak · bottom 6%
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 Mono S4 Halfcut Chroma Orange series is Solar Fabrik's answer for buildings where roof aesthetics matter just as much as system performance. The key feature is copper-red tinted front glass similar to RAL 8004, which blends the module into the color palette of traditional ceramic roof tiles and allows solar installations in places where classic black panels would be unacceptable - on historic buildings, in heritage conservation zones, or in old town centers. The panel uses bifacial N-Type TopCon half-cut cell technology in a glass-glass construction, delivering extra energy yield from the rear side of the module along with significantly higher mechanical and fire resistance compared to conventional backsheet modules. This construction also improves resistance to ammonia, salt, and hail, making the series a solid choice for agricultural sites and coastal regions. The manufacturer backs the module with a 30-year product warranty and linear performance warranty, reflecting confidence in the durability of the glass-glass build. It's a solution for investors, architects, and installers looking for a compromise between heritage protection requirements and real-world solar energy production.

Ranking

1,218 panels in the segment TOPCon 400-450 W
Metric This panel Median Position in segment Overall rank
Module efficiency 21.02% 22.00% Weak · bottom 6% 9,696
Power density 210.2 220.2 Weak · bottom 6% 9,728
Temperature coefficient -0.290 -0.290 Typical 2,165
Weight per kWp 57.1 51.4 Weak · bottom 13% 11,083
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

BIPV, residential, commercial and shaded-installations.

Not ideal for

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

Watch-outs
21.02% module efficiency

Bottom 6% of the TOPCon 400-450 W segment, against a median of 22.00%. Ranked 9,696th in the whole database.

210.2 watts per square metre

Bottom 6% of the TOPCon 400-450 W segment, against a median of 220.2. Ranked 9,728th in the whole database.

57.1 kg per kWp

Bottom 13% of the TOPCon 400-450 W segment, against a median of 51.4.

Notes from the database
  • Module efficiency of 21.0% is 1.0pp below average for TOPCon 400-450W panels (median: 22.0%)
  • 210.2 W/m² power density is 10.0 W/m² below TOPCon 400-450W median (220.2 W/m²) - requires larger installation area
  • Temperature coefficient of -0.29%/°C matches the TOPCon 400-450W median
  • At 24.0 kg (2.0 kg above TOPCon 400-450W median of 22.0 kg), requires checking roof load capacity
  • 80% bifaciality enables rear-side power generation, boosting yield by 4-12% on reflective surfaces

Specifications

Open datasheet PDF
Nominal power (Pmax) 420 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 21.02 % Weak Segment median 22.00%
Vmpp · Impp 29.07 V · 14.45 A Operating point at max power
Voc · Isc 34.69 V · 15.29 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 · TOPCon Monocrystalline
Bifaciality 80 % Rear output as a share of front
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

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
-0.290 %/°C against a segment median of -0.290
-
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 Chroma Orange 420W 420 W 21.02% -0.290 24.0 kg You are here
JST-EDMH-(445-465)W-TD (465W class) 465 W 23.81% -0.300 20.5 kg +45 W, lighter, +2.8 pp
LX-465M/182R-96+ GG 465 W 23.80% -0.260 23.5 kg +45 W, cooler, +2.8 pp
SPR-MAX7-470 470 W 23.70% -0.270 21.1 kg +50 W, +2.7 pp, +10 yr warranty
AIKO-A470-MAH54Mb 470 W 23.60% -0.260 21.5 kg +50 W, cooler, +2.6 pp
AIKO-A460-MAH54Mb 460 W 23.60% -0.290 20.5 kg +40 W, lighter, +2.6 pp
HSM-BD54-LA470 470 W 23.60% -0.260 21.5 kg +50 W, cooler, +2.6 pp
Mono S4 HC V 400 BF-DG 400 W 20.02% -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 +25 W, +1.3 pp
Mono S4 Halfcut Trend Full Black 450 W 450 W 22.50% -0.290 24.9 kg +30 W, +1.5 pp
Mono S4 Halfcut Trend White 455W 455 W 22.80% -0.310 24.9 kg +35 W, hotter, +1.8 pp
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg +90 W, cooler, +4.0 pp
AIKO-A495-MCE54Mw 495 W 24.80% -0.260 21.0 kg +75 W, lighter, +3.8 pp
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg +85 W, cooler, +3.7 pp
AIKO-A490-MCE54Mw 490 W 24.50% -0.260 21.0 kg +70 W, lighter, +3.5 pp
LR7-54HJD-500M 500 W 24.50% -0.240 23.5 kg +80 W, cooler, +3.5 pp
CIPRO-TN9C54M-500W 500 W 24.50% -0.260 21.4 kg +80 W, cooler, +3.5 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
Are Solar-Fabrik Mono S4 Halfcut Chroma Orange panels suitable for roofs with ceramic tiles in heritage conservation areas?
Yes, that's the main purpose of this series. The copper-red front glass, close to RAL 8004, blends the module into the color of traditional ceramic roof tiles, so the installation doesn't stand out against historic buildings. This solution is often accepted by conservation authorities in places where standard black panels would be rejected, such as old town centers or listed heritage buildings.
Does the colored glass reduce the panel's efficiency compared to black modules?
The tinted front glass causes a certain efficiency loss compared to standard black panels in the same series, since part of the light is absorbed or reflected by the pigment. Solar-Fabrik partly offsets this with bifacial TOPCon technology, which additionally captures light reflected off the roof on the rear side of the module, narrowing the yield gap.
What is bifacial N-type TOPCon technology and what advantages does it bring in this series?
TOPCon (Tunnel Oxide Passivated Contact) is an N-type cell technology offering higher efficiency and lower degradation than conventional PERC cells. In its bifacial version, the module also generates power from its rear side, using light reflected off the roof or surroundings. The glass-glass construction further increases cell rigidity and durability, resulting in more stable performance over the module's lifetime.
What is the maximum power output and warranty for this series?
Modules in the Mono S4 Halfcut Chroma Orange series reach up to 420 Wp. Solar-Fabrik backs them with a 30-year product warranty and a 30-year linear power warranty - among the longest terms on the market, reflecting the manufacturer's confidence in the durability of the glass-glass construction.
Will Chroma Orange panels hold up on a farm building or near the coast?
Yes. The glass-glass construction provides higher resistance to ammonia, salt, and hail compared to modules with a back sheet, making this series a good choice for livestock buildings, farms, and properties in coastal areas, where standard panels degrade faster.
Does installing Solar-Fabrik Chroma Orange panels require special mounting hardware or an inverter?
No, the modules are mounted on standard roof racking just like regular silicon panels, with no special hardware needed. However, due to the bifacial design, it's worth ensuring adequate clearance and a light, reflective surface beneath the panels, such as light-colored tiles, to make the most of the rear-side gain. The inverter should support the slightly higher voltages typical of bifacial modules.
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