--- title: "Solar-Fabrik S4-DG455-96TMax (White) 455W Solar Panel - Specs & Review | ComparePV" description: "Solar-Fabrik S4-DG455-96TMax (White) 455W solar panel. Specs: 22.80% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/solar-fabrik-s4-dg455-96tmax-white" updated: 2026-09-11 --- # Solar-Fabrik S4-DG455-96TMax (White) Middle of its segment, heavy for its output 1,089 panels in the segment TOPCon 450-500 W ## Identity - **Manufacturer:** Solar-Fabrik - **Model:** S4-DG455-96TMax (White) - **Series:** Mono S4 Halfcut Trend Series - **Rated power:** 455 W - **Cell technology:** TOPCon - **Bifacial:** yes ## How it compares Compared against segment TOPCon 450-500 W (1089 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 455 W | 465 W | Typical | | | Module efficiency | 22.80% | 22.52% | Typical | 2,714 | | Power density | 227.7 | 225.2 | Typical | 2,888 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight (kg) | 24.9 kg | 24.0 kg | Weak - bottom 19% | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 22.80% | 22.52% | Typical | 2,714 | | Power density | 227.7 | 225.2 | Typical | 2,888 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight per kWp | 54.7 | 52.2 | Weak - bottom 19% | 9,129 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Watch out for - **54.7 kg per kWp** - Bottom 19% of the TOPCon 450-500 W segment, against a median of 52.2. - **Best for:** Residential, commercial and shaded-installations. - **Not ideal for:** Weight-limited structures. ## Specification ### Electrical - **Rated power (Pmax):** 455 W - **Efficiency:** 22.80 % - **Voltage at Pmax (Vmp):** 30.28 V - **Current at Pmax (Imp):** 15.03 A - **Open-circuit voltage (Voc):** 36.21 V - **Short-circuit current (Isc):** 15.75 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.290 %/degC - **Temperature coefficient of Voc:** -0.250 %/degC - **Temperature coefficient of Isc:** 0.045 %/degC - **NOCT:** 42 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** TOPCon - **Cell count:** 96 - **Bifacial:** yes ### Physical - **Length:** 1762 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 24.9 kg - **Area:** 2.00 m2 - **Power density:** 227.7 Wp/m2 ### Warranty and degradation - **Product warranty:** 30 years - **Performance warranty:** 30 years - **Output guaranteed at end of warranty:** 87.4 % - **Output after 30 years:** 398 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 2714 of 14005 | | Power density | 2888 of 14005 | | Temperature coefficient | 2165 of 14005 | | Weight | 9129 of 14005 | | Warranty | 21 of 14005 | ## About this series The Mono S4 Halfcut Trend Series is a German-made solar panel line that pairs a clean aesthetic with strong resistance to harsh weather, available in Full Black and White finishes. At its core are **bifacial N-Type TOPCon half-cut cells**, which split each cell into smaller segments to reduce resistive losses and improve performance under low light and partial shading, while the rear side captures additional energy reflected from the ground. The **glass-glass construction** increases laminate rigidity and long-term durability, lowering the risk of microcracks and degradation over the years. The panel stands out with its **HW4 hail resistance rating**, withstanding ice balls up to 40 mm in diameter at speeds close to 30 m/s, as well as the **highest fire safety class A**, making it a safe choice for both residential roofs and commercial installations in regions exposed to extreme weather. The manufacturer backs the module with a **30-year product warranty and linear power warranty**, translating into lower investment risk and predictable returns. It's a solid option for buyers who want German build quality, a clean look without visible cell-connecting ribbons, and stable performance throughout the lifetime of a PV installation. ## Notable figures - Efficiency of 22.8% matches the \*\*TOPCon 450-500W\*\* median - Power density of 227.7 W/m² matches the \*\*TOPCon 450-500W\*\* median - Temperature coefficient of -0.29%/°C matches the \*\*TOPCon 450-500W\*\* median - #2714 for efficiency, #2165 for temperature performance out of 14005 panels ## Questions ### How does the Solar-Fabrik Mono S4 Halfcut Trend series differ from standard monocrystalline panels? The key difference is the use of bifacial N-Type TOPCon cells in half-cut configuration instead of typical PERC cells. Splitting the cells into smaller segments reduces current losses and improves performance under low irradiance or partial shading. Additionally, the rear side of the cells captures light reflected from the ground, delivering higher energy yield than classic, monofacial modules. ### Are Mono S4 Halfcut Trend panels suitable for roofs exposed to hail? Yes, the module carries an HW4 hail resistance rating, meaning it withstands ice ball impacts up to 40 mm in diameter at speeds close to 30 m/s. Combined with the glass-glass construction, which stiffens the laminate and reduces the risk of microcracks, the panel is a solid choice for regions prone to extreme weather events. ### What warranty comes with Solar-Fabrik Mono S4 Halfcut Trend panels? The manufacturer provides a 30-year product warranty and a 30-year linear power warranty. This covers not only manufacturing defects but also a guaranteed, predictable performance degradation curve over time, resulting in lower investment risk and stable returns from the PV installation over three decades of operation. ### What is the maximum power output of a panel from the Mono S4 Halfcut Trend series? The panel reaches a maximum power output of up to 460 Wp. Thanks to bifacial TOPCon cells, the actual energy yield can exceed the nameplate Wp value, since the rear side of the module also generates current from light reflected off the roof or ground beneath the installation. ### Does bifacial technology in the Mono S4 Halfcut Trend make sense on a pitched roof? The bifacial effect is strongest on ground-mounted systems or flat roofs with adequate clearance, where the rear side can capture light reflected from a bright surface. On a typical pitched roof, mounted close to the surface, the rear-side energy gain will be smaller, though the panel still benefits from half-cut technology, which improves performance under partial shading. ### Are Solar-Fabrik Mono S4 Halfcut Trend panels safe for fire protection on residential roofs? Yes, the module holds the highest fire protection class A, an important requirement for installations on residential buildings and commercial properties. Combined with German manufacturing quality and glass-glass construction, the panel meets the strict safety standards applied across the European market. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/d_mono_s4_trend_series_de-10d1a0034f14.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +40 W, lighter, +2.0 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | +50 W, cooler, +1.9 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | +35 W, lighter, +1.7 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | +45 W, cooler, +1.7 pp | | [Talesun CIPRO-TN9C54M-500W](https://comparepv.com/panel/talesun-cipro-tn9c54m-500w) | 500 W | +45 W, lighter, +1.7 pp | | [Gokin GK-3-54HGb-500M](https://comparepv.com/panel/gokin-gk-3-54hgb-500m) | 500 W | +45 W, lighter, +1.7 pp | | [Solar-Fabrik Mono S4 HC V 400 BF-DG](https://comparepv.com/panel/solar-fabrik-mono-s4-hc-v-400-bf-dg) | 400 W | -55 W, -2.8 pp | | [Solar-Fabrik Mono S4 Halfcut Chroma Orange 420W](https://comparepv.com/panel/solar-fabrik-mono-s4-halfcut-chroma-orange-420w) | 420 W | -35 W, -1.8 pp | | [Solar-Fabrik Mono S4 Halfcut Trend Full Black 445 W](https://comparepv.com/panel/solar-fabrik-mono-s4-halfcut-trend-full-black-445-w) | 445 W | -10 W, -0.5 pp | | [Solar-Fabrik Mono S4 Halfcut Trend Full Black 450 W](https://comparepv.com/panel/solar-fabrik-mono-s4-halfcut-trend-full-black-450-w) | 450 W | -0.3 pp | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +55 W, cooler, +2.2 pp | --- Source: https://comparepv.com/panel/solar-fabrik-s4-dg455-96tmax-white Not in this file, on the page: the I-V and temperature curves lifted from the manufacturer's datasheet, a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.