--- title: "Solar-Fabrik Mono S4 Halfcut BC White 480-490W vs Solar-Fabrik S4-DG625-132TMax - Solar Panel Comparison | ComparePV" description: "Compare Solar-Fabrik Mono S4 Halfcut BC White 480-490W vs Solar-Fabrik S4-DG625-132TMax 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-white-480-490w/solar-fabrik-s4-dg625-132tmax" updated: 2026-09-11 --- # Solar-Fabrik Mono S4 Halfcut BC White 480-490W vs Solar-Fabrik S4-DG625-132TMax Mono S4 Halfcut BC White 480-490W leads on the differences that matter The largest is temperature coefficient: 0.040 %/°C better in heat. 2 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 Halfcut BC White 480-490W](https://comparepv.com/panel/solar-fabrik-mono-s4-halfcut-bc-white-480-490w) | [Solar-Fabrik S4-DG625-132TMax](https://comparepv.com/panel/solar-fabrik-s4-dg625-132tmax) | | Manufacturer | Solar-Fabrik | Solar-Fabrik | | Power | 485 Wp | 625 Wp | | Efficiency | 23.75 % | 23.14 % | | Technology | Back Contact | TOPCon | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | Mono S4 Halfcut BC White 480-490W | S4-DG625-132TMax | Difference | | --- | --- | --- | --- | | Temperature coefficient | -0.260 %/°C | -0.300 %/°C | +0.040 %/°C for Mono S4 Halfcut BC White 480-490W | | Rated power | 485 Wp | 625 Wp | +140 W for S4-DG625-132TMax | | Performance warranty | 30 yrs | 25 yrs | +5 yrs for Mono S4 Halfcut BC White 480-490W | | Module efficiency | 23.75 % | 23.14 % | +0.61 pp for Mono S4 Halfcut BC White 480-490W | | Weight | 25.0 kg | 33.6 kg | -8.6 kg for Mono S4 Halfcut BC White 480-490W | | Product warranty | 30 yrs | 15 yrs | +15 yrs for Mono S4 Halfcut BC White 480-490W | | Power density | 237.6 Wp/m² | 231.4 Wp/m² | +6.2 Wp/m² for Mono S4 Halfcut BC White 480-490W | | Open-circuit voltage | 40.64 V | 49.30 V | 8.66 V apart | | Module area | 2.041 m² | 2.701 m² | 0.660 m² apart | | Cell technology | Back Contact | TOPCon | Back Contact vs TOPCon | | Voltage at max power | 33.61 V | 41.52 V | 7.91 V apart | | Cell count | 108 | 132 | 24 cells apart | | Short-circuit current | 15.08 A | 15.97 A | 0.89 A apart | | Weight per kWp | 51.5 kg/kWp | 53.8 kg/kWp | -2.2 kg/kWp for Mono S4 Halfcut BC White 480-490W | | Dimensions | 1800x1134x30 mm | 2382x1134x30 mm | 1800x1134x30 mm vs 2382x1134x30 mm | | Current at max power | 14.43 A | 15.07 A | 0.64 A apart | ## Every compared parameter | Parameter | Mono S4 Halfcut BC White 480-490W | S4-DG625-132TMax | | --- | --- | --- | | Rated power | 485 Wp | 625 Wp | | Module efficiency | 23.75 % | 23.14 % | | Power density | 237.6 Wp/m² | 231.4 Wp/m² | | Open-circuit voltage | 40.64 V | 49.30 V | | Voltage at max power | 33.61 V | 41.52 V | | Short-circuit current | 15.08 A | 15.97 A | | Current at max power | 14.43 A | 15.07 A | | Temperature coefficient | -0.260 %/°C | -0.300 %/°C | | Dimensions | 1800x1134x30 mm | 2382x1134x30 mm | | Module area | 2.041 m² | 2.701 m² | | Weight | 25.0 kg | 33.6 kg | | Weight per kWp | 51.5 kg/kWp | 53.8 kg/kWp | | Product warranty | 30 yrs | 15 yrs | | Performance warranty | 30 yrs | 25 yrs | | Annual degradation | - | - | | Cell technology | Back Contact | TOPCon | | Cell type | Monocrystalline | Monocrystalline | | Cell count | 108 | 132 | | 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 - **Cumulative output, Mono S4 Halfcut BC White 480-490W:** 16,273 kWh - **Cumulative output, S4-DG625-132TMax:** 20,970 kWh - **Gap:** 4,697 kWh ## Output when hot | Condition | Cell temperature | Mono S4 Halfcut BC White 480-490W | S4-DG625-132TMax | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 485 W | 625 W | 100.0% of rated power | | Cool, bright day | 40 °C | 466 W | 597 W | 95.5% of rated power | | Typical summer roof | 55 °C | 447 W | 569 W | 91.0% of rated power | | Hot roof | 70 °C | 428 W | 541 W | 86.5% of rated power | ## Against the whole database | Measure | Mono S4 Halfcut BC White 480-490W | S4-DG625-132TMax | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #513 | #1,509 | 14,005 | Mono S4 Halfcut BC White 480-490W leads by 996 places | | Power density | #495 | #1,513 | 14,005 | Mono S4 Halfcut BC White 480-490W leads by 1,018 places | | Heat behaviour | #511 | #6,093 | 14,005 | Mono S4 Halfcut BC White 480-490W leads by 5,582 places | | Weight | #4,932 | #7,818 | 14,005 | Mono S4 Halfcut BC White 480-490W leads by 2,886 places | | Warranty | #21 | #9,798 | 14,005 | Mono S4 Halfcut BC White 480-490W leads by 9,777 places | | Overall | #2,601 | #2,619 | 14,005 | Mono S4 Halfcut BC White 480-490W leads by 18 places | ## Questions ### Which panel is better: Solar-Fabrik Mono S4 Halfcut BC White 480-490W or Solar-Fabrik S4-DG625-132TMax? According to our database: **Solar-Fabrik Mono S4 Halfcut BC White 480-**490 W**** has higher module efficiency (**23.75%** vs **23.14%**); **Solar-Fabrik Mono S4 Halfcut BC White 480-**490 W**** tolerates heat better (temp coeff **-0.260%/°C** vs **-0.300%/°C**). 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 White 480-490W and Solar-Fabrik S4-DG625-132TMax? **Solar-Fabrik Mono S4 Halfcut BC White 480-**490 W**** has a module efficiency of **23.75%**, while **Solar-Fabrik S4-DG625-132TMax** is **23.14%**. 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 White 480-490W use vs Solar-Fabrik S4-DG625-132TMax? **Solar-Fabrik Mono S4 Halfcut BC White 480-**490 W**** uses **Back Contact** cells; **Solar-Fabrik S4-DG625-132TMax** 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 Halfcut BC White 480-490W and Solar-Fabrik S4-DG625-132TMax? **Solar-Fabrik Mono S4 Halfcut BC White 480-**490 W**** has a **30 years** power warranty; **Solar-Fabrik S4-DG625-132TMax** has a **25 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 White 480-490W and Solar-Fabrik S4-DG625-132TMax bifacial panels? Both **Solar-Fabrik Mono S4 Halfcut BC White 480-**490 W**** and **Solar-Fabrik S4-DG625-132TMax** 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 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 - [Solar-Fabrik Mono S4 Halfcut BC White 480-490W vs Solar-Fabrik Mono S4 Halfcut BC Series White 490W](https://comparepv.com/compare/solar-fabrik-mono-s4-halfcut-bc-white-480-490w/solar-fabrik-mono-s4-halfcut-bc-series-white-490w) - One difference: module efficiency - [Solar-Fabrik Mono S4 Halfcut BC White 480-490W vs Solar-Fabrik Mono S4 Halfcut BC White 485](https://comparepv.com/compare/solar-fabrik-mono-s4-halfcut-bc-white-480-490w/solar-fabrik-mono-s4-halfcut-bc-white-485) - The same specification on paper - [Solar-Fabrik Mono S4 Halfcut BC White 480-490W vs Solar-Fabrik Mono S4 Halfcut BC Series White 485W](https://comparepv.com/compare/solar-fabrik-mono-s4-halfcut-bc-white-480-490w/solar-fabrik-mono-s4-halfcut-bc-series-white-485w) - The same specification on paper - [Solar-Fabrik Mono S4 Halfcut BC White 480-490W vs Solar-Fabrik Mono S4 Halfcut BC White 480](https://comparepv.com/compare/solar-fabrik-mono-s4-halfcut-bc-white-480-490w/solar-fabrik-mono-s4-halfcut-bc-white-480) - One difference: module efficiency - [Solar-Fabrik S4-DG625-132TMax vs Solar-Fabrik S4-DG620-132TMax](https://comparepv.com/compare/solar-fabrik-s4-dg625-132tmax/solar-fabrik-s4-dg620-132tmax) - The same specification on paper --- Source: https://comparepv.com/compare/solar-fabrik-mono-s4-halfcut-bc-white-480-490w/solar-fabrik-s4-dg625-132tmax 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.