--- title: "Solar-Fabrik Mono S4 Quartercut Premium DE Series 480W vs Solar-Fabrik Mono S4 Quartercut Premium DE Series 485W - Solar Panel Comparison | ComparePV" description: "Compare Solar-Fabrik Mono S4 Quartercut Premium DE Series 480W vs Solar-Fabrik Mono S4 Quartercut Premium DE Series 485W side by side: what actually differs, output when it is hot, thirty-year production, and the full specification." source: "https://comparepv.com/compare/solar-fabrik-mono-s4-quartercut-premium-de-series-480w/solar-fabrik-mono-s4-quartercut-premium-de-series-485w" updated: 2026-09-11 --- # Solar-Fabrik Mono S4 Quartercut Premium DE Series 480W vs Solar-Fabrik Mono S4 Quartercut Premium DE Series 485W 485W leads on the differences that matter The largest is module efficiency: 0.25 pp more efficient. 17 of 18 comparable parameters are identical, with 1 more left out because at least one datasheet does not publish it. ## The two panels | Attribute | A | B | | --- | --- | --- | | Panel | [Solar-Fabrik Mono S4 Quartercut Premium DE Series 480W](https://comparepv.com/panel/solar-fabrik-mono-s4-quartercut-premium-de-series-480w) | [Solar-Fabrik Mono S4 Quartercut Premium DE Series 485W](https://comparepv.com/panel/solar-fabrik-mono-s4-quartercut-premium-de-series-485w) | | Manufacturer | Solar-Fabrik | Solar-Fabrik | | Power | 480 Wp | 485 Wp | | Efficiency | 24.02 % | 24.27 % | | Technology | TOPCon | TOPCon | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | 480W | 485W | Difference | | --- | --- | --- | --- | | Module efficiency | 24.02 % | 24.27 % | +0.25 pp for 485W | ## Every compared parameter | Parameter | 480W | 485W | | --- | --- | --- | | Rated power | 480 Wp | 485 Wp | | Module efficiency | 24.02 % | 24.27 % | | Power density | 240.2 Wp/m² | 242.7 Wp/m² | | Open-circuit voltage | 36.83 V | 37.08 V | | Voltage at max power | 31.17 V | 31.29 V | | Short-circuit current | 15.98 A | 16.03 A | | Current at max power | 15.40 A | 15.50 A | | Temperature coefficient | -0.260 %/°C | -0.260 %/°C | | Dimensions | 1762x1134x30 mm | 1762x1134x30 mm | | Module area | 1.998 m² | 1.998 m² | | Weight | 24.0 kg | 24.0 kg | | Weight per kWp | 50.0 kg/kWp | 49.5 kg/kWp | | Product warranty | 30 yrs | 30 yrs | | Performance warranty | 30 yrs | 30 yrs | | Annual degradation | - | - | | Cell technology | TOPCon | TOPCon | | Cell type | Monocrystalline | Monocrystalline | | Cell count | 192 | 192 | | Bifacial | Yes | Yes | ## Thirty-year yield A 1.0% first-year loss then 0.40% a year, assumed for both panels, at 1,200 kWh/kWp a year Same temp coeff. for both panels (-0.260 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other. - **Cumulative output, 480W:** 16,105 kWh - **Cumulative output, 485W:** 16,273 kWh - **Gap:** 168 kWh ## Output when hot | Condition | Cell temperature | 480W | 485W | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 480 W | 485 W | 100.0% of rated power | | Cool, bright day | 40 °C | 461 W | 466 W | 96.1% of rated power | | Typical summer roof | 55 °C | 443 W | 447 W | 92.2% of rated power | | Hot roof | 70 °C | 424 W | 428 W | 88.3% of rated power | ## Against the whole database | Measure | 480W | 485W | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #294 | #164 | 14,005 | 485W leads by 130 places | | Power density | #294 | #140 | 14,005 | 485W leads by 154 places | | Heat behaviour | #511 | #511 | 14,005 | Tied - the same position in the database | | Weight | #3,317 | #3,021 | 14,005 | 485W leads by 296 places | | Warranty | #21 | #21 | 14,005 | Tied - the same position in the database | | Overall | #2,440 | #2,094 | 14,005 | 485W leads by 346 places | ## Questions ### Which panel is better: Solar-Fabrik Mono S4 Quartercut Premium DE Series 480W or Solar-Fabrik Mono S4 Quartercut Premium DE Series 485W? According to our database: **Solar-Fabrik Mono S4 Quartercut Premium DE Series **485 W**** has higher module efficiency (**24.27%** vs **24.02%**). See the full spec comparison and 30-year energy simulation above for a complete picture. ### What is the efficiency of Solar-Fabrik Mono S4 Quartercut Premium DE Series 480W and Solar-Fabrik Mono S4 Quartercut Premium DE Series 485W? **Solar-Fabrik Mono S4 Quartercut Premium DE Series **480 W**** has a module efficiency of **24.02%**, while **Solar-Fabrik Mono S4 Quartercut Premium DE Series **485 W**** is **24.27%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does Solar-Fabrik Mono S4 Quartercut Premium DE Series 480W use vs Solar-Fabrik Mono S4 Quartercut Premium DE Series 485W? **Solar-Fabrik Mono S4 Quartercut Premium DE Series **480 W**** uses **TOPCon** cells; **Solar-Fabrik Mono S4 Quartercut Premium DE Series **485 W**** uses **TOPCon**. Modern **n-type** technologies (**TOPCon**, **HJT**, BC) typically deliver higher efficiency and lower degradation compared to older **PERC** (p-type) cells. ### What is the warranty on Solar-Fabrik Mono S4 Quartercut Premium DE Series 480W and Solar-Fabrik Mono S4 Quartercut Premium DE Series 485W? **Solar-Fabrik Mono S4 Quartercut Premium DE Series **480 W**** has a **30 years** power warranty; **Solar-Fabrik Mono S4 Quartercut Premium DE Series **485 W**** has a **30 years** power warranty. The power warranty guarantees a minimum percentage of rated output at the end of the warranty period (typically 80**-87%**). Product (materials) warranties are usually shorter. ### Are Solar-Fabrik Mono S4 Quartercut Premium DE Series 480W and Solar-Fabrik Mono S4 Quartercut Premium DE Series 485W bifacial panels? Both **Solar-Fabrik Mono S4 Quartercut Premium DE Series **480 W**** and **Solar-Fabrik Mono S4 Quartercut Premium DE Series **485 W**** are bifacial - they capture reflected light from the ground, which can add 5**-15%** more annual energy on ground-mount or elevated rooftop installations with a light surface beneath. ## Related comparisons - [Solar-Fabrik Mono S4 Quartercut Premium DE Series 480W vs Solar-Fabrik Mono S4 Quartercut Premium DE Series 475W](https://comparepv.com/compare/solar-fabrik-mono-s4-quartercut-premium-de-series-480w/solar-fabrik-mono-s4-quartercut-premium-de-series-475w) - One difference: module efficiency - [Solar-Fabrik Mono S4 Quartercut Premium DE Series 480W vs Solar-Fabrik S4-DG625-132TMax](https://comparepv.com/compare/solar-fabrik-mono-s4-quartercut-premium-de-series-480w/solar-fabrik-s4-dg625-132tmax) - 13 differences, the largest is module efficiency - [Solar-Fabrik Mono S4 Quartercut Premium DE Series 480W vs Solar-Fabrik S4-DG620-132TMax](https://comparepv.com/compare/solar-fabrik-mono-s4-quartercut-premium-de-series-480w/solar-fabrik-s4-dg620-132tmax) - 13 differences, the largest is module efficiency - [Solar-Fabrik Mono S4 Quartercut Premium DE Series 480W vs Solar-Fabrik Mono S4 Halfcut BC White 490](https://comparepv.com/compare/solar-fabrik-mono-s4-quartercut-premium-de-series-480w/solar-fabrik-mono-s4-halfcut-bc-white-490) - 10 differences, the largest is open-circuit voltage - [Solar-Fabrik Mono S4 Quartercut Premium DE Series 480W vs Solar-Fabrik Mono S4 Halfcut BC Series White 490W](https://comparepv.com/compare/solar-fabrik-mono-s4-quartercut-premium-de-series-480w/solar-fabrik-mono-s4-halfcut-bc-series-white-490w) - 10 differences, the largest is open-circuit voltage - [Solar-Fabrik Mono S4 Quartercut Premium DE Series 480W vs Solar-Fabrik Mono S4 Halfcut BC White 485](https://comparepv.com/compare/solar-fabrik-mono-s4-quartercut-premium-de-series-480w/solar-fabrik-mono-s4-halfcut-bc-white-485) - 10 differences, the largest is open-circuit voltage --- Source: https://comparepv.com/compare/solar-fabrik-mono-s4-quartercut-premium-de-series-480w/solar-fabrik-mono-s4-quartercut-premium-de-series-485w Not in this file, on the page: the thirty-year yield curve year by year at a cell temperature you pick and a written summary generated on request.