--- title: "DualSun Solar Panels Review 2026: Pros, Cons & Specs | ComparePV" description: "In-depth DualSun solar panel review 2026. 6 models analyzed: efficiency, cell technology, warranty, top picks. Compare DualSun panels on ComparePV." source: "https://comparepv.com/reviews/dualsun" --- # DualSun panels, *read off the datasheets* DualSun is a French manufacturer specializing in hybrid solar panels that simultaneously generate electricity (photovoltaic) and hot water (thermal), marketed as PVT panels. The company produces both its flagship SPRING hybrid panel and the FLASH high-performance PV panel, with R&D based in... Everything below is computed from those 6 datasheets: no score out of ten, no ranking of brands against each other, and nothing a manufacturer can pay to change. Where DualSun does not publish a figure, it is left out of the average rather than assumed. ## The company - **Founded:** 2010 - **Headquarters:** Marseille, France - **Employees:** 50-100 Company facts, not datasheet figures. Tier 1 is a financier's bankability list, and says nothing about how a panel performs. ## Key figures | Measure | Value | Note | | --- | --- | --- | | Panels | 6 | models in the database | | Average efficiency | 21.7 % | across the catalogue | | Best efficiency | 22.0 % | their strongest module | | Power range | 425-500 Wp | smallest to largest | | Bifacial share | 33 % | 2 dual-sided models | | Average warranty | 30 years | guaranteed output term | ## 01. The top of the range The leaders of DualSun's own catalogue on the two figures a specification sheet leads with. Neither is a verdict: the most efficient module in a range is rarely the one that suits a given roof. ### Most efficient module efficiency | # | Panel | power | efficiency | | --- | --- | --- | --- | | 1 | [DS450-108M10TB-03](https://comparepv.com/panel/huasun-ds450-108m10tb-03) | 450 Wp | 22.0% (good) | | 2 | [DS425-108M10TB-03](https://comparepv.com/panel/huasun-ds425-108m10tb-03) | 425 Wp | 21.8% | | 3 | [SPRING4 425 TOPCon NI](https://comparepv.com/panel/huasun-spring4-425-topcon-ni) | 425 Wp | 21.8% | | 4 | [SPRING4 425 TOPCon F](https://comparepv.com/panel/huasun-spring4-425-topcon-f) | 425 Wp | 21.8% | | 5 | [SPRING4 425 TOPCon I](https://comparepv.com/panel/dualsun-spring4-425-topcon-i) | 425 Wp | 21.8% | - DS450-108M10TB-03 - Monocrystalline bifacial - DS425-108M10TB-03 - Monocrystalline bifacial - SPRING4 425 TOPCon NI - Monocrystalline - SPRING4 425 TOPCon F - Monocrystalline - SPRING4 425 TOPCon I - Monocrystalline [Sort the whole catalogue by efficiency](https://comparepv.com/panels/dualsun?sort_by=efficiency&sort_order=desc) ### Highest power nameplate output | # | Panel | efficiency | power | | --- | --- | --- | --- | | 1 | [DS500-132M10B-01](https://comparepv.com/panel/dualsun-ds500-132m10b-01) | 20.8% | 500 Wp | | 2 | [DS450-108M10TB-03](https://comparepv.com/panel/huasun-ds450-108m10tb-03) | 22.0% (good) | 450 Wp | | 3 | [DS425-108M10TB-03](https://comparepv.com/panel/huasun-ds425-108m10tb-03) | 21.8% | 425 Wp | | 4 | [SPRING4 425 TOPCon NI](https://comparepv.com/panel/huasun-spring4-425-topcon-ni) | 21.8% | 425 Wp | | 5 | [SPRING4 425 TOPCon F](https://comparepv.com/panel/huasun-spring4-425-topcon-f) | 21.8% | 425 Wp | - DS500-132M10B-01 - Monocrystalline - DS450-108M10TB-03 - Monocrystalline bifacial - DS425-108M10TB-03 - Monocrystalline bifacial - SPRING4 425 TOPCon NI - Monocrystalline - SPRING4 425 TOPCon F - Monocrystalline [Sort the whole catalogue by power](https://comparepv.com/panels/dualsun?sort_by=power&sort_order=desc) ## 02. By what the array is for Three cuts of the same catalogue, each ordered by efficiency inside its band. An empty column means the brand does not build for that case. ### For a house roof 380-460 Wp | # | Panel | power | efficiency | | --- | --- | --- | --- | | 1 | [DS450-108M10TB-03](https://comparepv.com/panel/huasun-ds450-108m10tb-03) | 450 Wp | 22.0% (good) | | 2 | [DS425-108M10TB-03](https://comparepv.com/panel/huasun-ds425-108m10tb-03) | 425 Wp | 21.8% | | 3 | [SPRING4 425 TOPCon NI](https://comparepv.com/panel/huasun-spring4-425-topcon-ni) | 425 Wp | 21.8% | | 4 | [SPRING4 425 TOPCon F](https://comparepv.com/panel/huasun-spring4-425-topcon-f) | 425 Wp | 21.8% | | 5 | [SPRING4 425 TOPCon I](https://comparepv.com/panel/dualsun-spring4-425-topcon-i) | 425 Wp | 21.8% | - DS450-108M10TB-03 - Monocrystalline bifacial - DS425-108M10TB-03 - Monocrystalline bifacial - SPRING4 425 TOPCon NI - Monocrystalline - SPRING4 425 TOPCon F - Monocrystalline - SPRING4 425 TOPCon I - Monocrystalline ### For a commercial array 500 Wp and up | # | Panel | power | efficiency | | --- | --- | --- | --- | | 1 | [DS500-132M10B-01](https://comparepv.com/panel/dualsun-ds500-132m10b-01) | 500 Wp | 20.8% | - DS500-132M10B-01 - Monocrystalline ### For a ground mount dual-sided | # | Panel | power | efficiency | | --- | --- | --- | --- | | 1 | [DS450-108M10TB-03](https://comparepv.com/panel/huasun-ds450-108m10tb-03) | 450 Wp | 22.0% (good) | | 2 | [DS425-108M10TB-03](https://comparepv.com/panel/huasun-ds425-108m10tb-03) | 425 Wp | 21.8% | - DS450-108M10TB-03 - Monocrystalline bifacial - DS425-108M10TB-03 - Monocrystalline bifacial ## 03. What the catalogue is made of Shares are of the 6 modules in the database, counted once each. A power ladder of one module counts as its rungs, which is why a large catalogue is not the same as a wide one. [Cell technology across the market](https://comparepv.com/stats/cell-technology) ### Cell technology share of the catalogue | # | Panel | share | panels | | --- | --- | --- | --- | | | TOPCon | 83.3% | 5 | | | PERC | 16.7% | 1 | TOPCon accounts for 83.3% of the catalogue - 5 of 6 modules. ### Efficiency spread share of the catalogue | # | Panel | share | panels | | --- | --- | --- | --- | | | 20-21% | 16.7% | 1 | | | 21-22% | 66.7% | 4 | | | 22-23% | 16.7% | 1 | ## 04. Strengths and gaps Both lists are derived from the figures above rather than written about the brand. A gap here is a gap in what is published, which is not always a gap in what is built. ### What this catalogue is good at - **Strength:** Strong warranty coverage averaging 30 years ## 05. In short > **DualSun:** DualSun is a solid option, offering 6 panels suitable for both residential and commercial buyers. With an average efficiency of 21.7% and top models reaching 22.0%, their panels deliver competitive performance. ### Common questions #### Is DualSun a good solar panel manufacturer? DualSun offers 6 solar panel models with an average efficiency of 21.7%. Check their full panel lineup on ComparePV to find the best model for your needs. #### What types of solar panels does DualSun make? DualSun manufactures panels ranging from 425W to 500W, covering both residential and commercial applications. Their portfolio includes TOPCon (83%), PERC (17%) cell technologies. #### How efficient are DualSun solar panels? DualSun panels have an average efficiency of 21.7%, with their most efficient model reaching 22.0%. This puts them in the competitive range in the current market. #### Does DualSun make bifacial solar panels? Yes, DualSun offers 2 bifacial panels, representing 33% of their portfolio. Bifacial panels can generate additional energy from the rear side, making them ideal for ground-mounted systems. #### What warranty does DualSun offer on their solar panels? DualSun panels come with an average performance warranty of 30 years. This warranty guarantees that the panels will maintain a specified level of power output over time, protecting your investment against degradation beyond normal levels. #### Are DualSun panels good for residential use? DualSun offers panels in the residential-friendly 380-460W range. For home installations, look for models with high efficiency and compact dimensions to maximize power from limited roof space. Browse their full lineup on ComparePV to filter by power range and specifications. #### Does DualSun use TOPCon technology? Yes, DualSun has adopted TOPCon (Tunnel Oxide Passivated Contact) cell technology in part of their portfolio. TOPCon cells offer higher efficiency and better temperature performance compared to older PERC technology, making them a strong choice for maximizing energy production. ## 06. Compared with A brand comparison weighs the two catalogues against each other - what each builds, at what efficiency, and how deep the range goes. [Build your own](https://comparepv.com/comparisons) - [DualSun vs Jinko Solar](https://comparepv.com/dualsun-vs-jinko-solar) - [DualSun vs JA Solar](https://comparepv.com/dualsun-vs-ja-solar) - [DualSun vs Trina Solar](https://comparepv.com/dualsun-vs-trina-solar) - [DualSun vs LONGi](https://comparepv.com/dualsun-vs-longi) - [DualSun vs Canadian Solar](https://comparepv.com/canadian-solar-vs-dualsun) - [DualSun vs Q-Cells](https://comparepv.com/dualsun-vs-q-cells) - [DualSun vs AIKO](https://comparepv.com/aiko-vs-dualsun) - [DualSun vs Hyundai](https://comparepv.com/dualsun-vs-hyundai) ## Elsewhere - [All DualSun panels 6](https://comparepv.com/panels/dualsun) - [All manufacturers](https://comparepv.com/reviews) - [Panel database](https://comparepv.com/panels) - [Market statistics](https://comparepv.com/stats) --- Source: https://comparepv.com/reviews/dualsun