--- title: "Solar-Fabrik Mono S4 Halfcut BC Series White 485W vs Solar-Fabrik Mono S4 Halfcut BC White 480-490W - Solar Panel Comparison | ComparePV" description: "Compare Solar-Fabrik Mono S4 Halfcut BC Series White 485W vs Solar-Fabrik Mono S4 Halfcut BC White 480-490W 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-halfcut-bc-series-white-485w/solar-fabrik-mono-s4-halfcut-bc-white-480-490w" updated: 2026-09-11 --- # Solar-Fabrik Mono S4 Halfcut BC Series White 485W vs Solar-Fabrik Mono S4 Halfcut BC White 480-490W Identical on every published parameter All 17 comparable parameters agree, with 2 more left out because at least one datasheet does not publish them. Two records this alike are usually one panel sold under two names, or two bins of the same production line - decide on price and on who you would rather buy from. ## The two panels | Attribute | A | B | | --- | --- | --- | | Panel | [Solar-Fabrik Mono S4 Halfcut BC Series White 485W](https://comparepv.com/panel/solar-fabrik-mono-s4-halfcut-bc-series-white-485w) | [Solar-Fabrik Mono S4 Halfcut BC White 480-490W](https://comparepv.com/panel/solar-fabrik-mono-s4-halfcut-bc-white-480-490w) | | Manufacturer | Solar-Fabrik | Solar-Fabrik | | Power | 485 Wp | 485 Wp | | Efficiency | 23.80 % | 23.75 % | | Technology | Back Contact | Back Contact | ## Every compared parameter | Parameter | Series White 485W | White 480-490W | | --- | --- | --- | | Rated power | 485 Wp | 485 Wp | | Module efficiency | 23.80 % | 23.75 % | | Power density | 237.6 Wp/m² | 237.6 Wp/m² | | Open-circuit voltage | 40.64 V | 40.64 V | | Voltage at max power | 33.62 V | 33.61 V | | Short-circuit current | 15.08 A | 15.08 A | | Current at max power | 14.43 A | 14.43 A | | Temperature coefficient | - | -0.260 %/°C | | Dimensions | 1800x1134x30 mm | 1800x1134x30 mm | | Module area | 2.041 m² | 2.041 m² | | Weight | 25.0 kg | 25.0 kg | | Weight per kWp | 51.5 kg/kWp | 51.5 kg/kWp | | Product warranty | 30 yrs | 30 yrs | | Performance warranty | 30 yrs | 30 yrs | | Annual degradation | - | - | | Cell technology | Back Contact | Back Contact | | Cell type | Monocrystalline | Monocrystalline | | Cell count | 108 | 108 | | 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 Projected at 25 °C. Not published by Solar-Fabrik, so a hotter case cannot be shown without inventing one side of it. - **Cumulative output, Series White 485W:** 16,273 kWh - **Cumulative output, White 480-490W:** 16,273 kWh - **Gap:** No difference ## Output when hot | Condition | Cell temperature | Series White 485W | White 480-490W | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | - | 485 W | 100.0% of rated power | | Cool, bright day | 40 °C | - | 466 W | 96.1% of rated power | | Typical summer roof | 55 °C | - | 447 W | 92.2% of rated power | | Hot roof | 70 °C | - | 428 W | 88.3% of rated power | ## Against the whole database | Measure | Series White 485W | White 480-490W | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #433 | #513 | 14,005 | Series White 485W leads by 80 places | | Power density | #495 | #495 | 14,005 | Tied - the same position in the database | | Heat behaviour | #13,924 | #511 | 14,005 | White 480-490W leads by 13,413 places | | Weight | #4,932 | #4,932 | 14,005 | Tied - the same position in the database | | Warranty | #21 | #21 | 14,005 | Tied - the same position in the database | | Overall | #2,555 | #2,601 | 14,005 | Series White 485W leads by 46 places | ## Questions ### Which panel is better: Solar-Fabrik Mono S4 Halfcut BC Series White 485W or Solar-Fabrik Mono S4 Halfcut BC White 480-490W? According to our database: **Solar-Fabrik Mono S4 Halfcut BC Series White **485 W**** has higher module efficiency (**23.80%** vs **23.75%**). See the full spec comparison and 30-year energy simulation above for a complete picture. ### What is the efficiency of Solar-Fabrik Mono S4 Halfcut BC Series White 485W and Solar-Fabrik Mono S4 Halfcut BC White 480-490W? **Solar-Fabrik Mono S4 Halfcut BC Series White **485 W**** has a module efficiency of **23.80%**, while **Solar-Fabrik Mono S4 Halfcut BC White 480-**490 W**** is **23.75%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does Solar-Fabrik Mono S4 Halfcut BC Series White 485W use vs Solar-Fabrik Mono S4 Halfcut BC White 480-490W? **Solar-Fabrik Mono S4 Halfcut BC Series White **485 W**** uses **Back Contact** cells; **Solar-Fabrik Mono S4 Halfcut BC White 480-**490 W**** uses **Back Contact**. 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 Halfcut BC Series White 485W and Solar-Fabrik Mono S4 Halfcut BC White 480-490W? **Solar-Fabrik Mono S4 Halfcut BC Series White **485 W**** has a **30 years** power warranty; **Solar-Fabrik Mono S4 Halfcut BC White 480-**490 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 Halfcut BC Series White 485W and Solar-Fabrik Mono S4 Halfcut BC White 480-490W bifacial panels? Both **Solar-Fabrik Mono S4 Halfcut BC Series White **485 W**** and **Solar-Fabrik Mono S4 Halfcut BC White 480-**490 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 Halfcut BC Series White 485W vs Solar-Fabrik Mono S4 Halfcut BC Series White 490W](https://comparepv.com/compare/solar-fabrik-mono-s4-halfcut-bc-series-white-485w/solar-fabrik-mono-s4-halfcut-bc-series-white-490w) - One difference: module efficiency - [Solar-Fabrik Mono S4 Halfcut BC Series White 485W vs Solar-Fabrik Mono S4 Halfcut BC Series Full Black 480W](https://comparepv.com/compare/solar-fabrik-mono-s4-halfcut-bc-series-white-485w/solar-fabrik-mono-s4-halfcut-bc-series-full-black-480w) - One difference: module efficiency - [Solar-Fabrik Mono S4 Halfcut BC Series White 485W vs Solar-Fabrik Mono S4 Halfcut BC Series Black 480W](https://comparepv.com/compare/solar-fabrik-mono-s4-halfcut-bc-series-white-485w/solar-fabrik-mono-s4-halfcut-bc-series-black-480w) - One difference: module efficiency - [Solar-Fabrik Mono S4 Halfcut BC Series White 485W vs Solar-Fabrik Mono S4 Halfcut BC Series Black 475W](https://comparepv.com/compare/solar-fabrik-mono-s4-halfcut-bc-series-white-485w/solar-fabrik-mono-s4-halfcut-bc-series-black-475w) - 3 differences, the largest is module efficiency - [Solar-Fabrik Mono S4 Halfcut BC Series White 485W vs Solar-Fabrik Mono S4 Halfcut BC Series Full Black 475W](https://comparepv.com/compare/solar-fabrik-mono-s4-halfcut-bc-series-white-485w/solar-fabrik-mono-s4-halfcut-bc-series-full-black-475w) - 3 differences, the largest is module efficiency - [Solar-Fabrik Mono S4 Halfcut BC White 480-490W vs Solar-Fabrik Mono S4 Halfcut BC White 490](https://comparepv.com/compare/solar-fabrik-mono-s4-halfcut-bc-white-480-490w/solar-fabrik-mono-s4-halfcut-bc-white-490) - One difference: module efficiency --- Source: https://comparepv.com/compare/solar-fabrik-mono-s4-halfcut-bc-series-white-485w/solar-fabrik-mono-s4-halfcut-bc-white-480-490w 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.