---
title: "DualSun vs Q-Cells - Brand Comparison | ComparePV"
description: "Compare DualSun vs Q-Cells solar panels: full portfolio, efficiency, cell technology breakdown, warranty terms and company background."
source: "https://comparepv.com/dualsun-vs-q-cells"
---

# DualSun vs Q-Cells

Q-Cells has the broader catalog (89 vs 6 models). Q-Cells leads on peak efficiency at 23.20%.


## The two companies


| Attribute | DualSun | Q-Cells |
| --- | --- | --- |
| Country | France | South Korea |
| Headquarters | Marseille | Seoul |
| Founded | 2010 | 1999 |
| Employees | 50-100 | 2000+ |
| Annual capacity |  | 11.2 GW/year |
| Tier 1 |  | yes |
| Listed |  | NASDAQ: HQCL |
| Website | [https://dualsun.com](https://dualsun.com) | [https://www.qcells.com](https://www.qcells.com) |

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 Marseille and module...

Qcells is a renowned global provider of complete energy solutions, specializing in solar cells and modules, energy storage solutions, downstream project business, and energy retail. The company has a strong heritage dating back to its foundation in Germany and has become a leader in technology innovations. As an...


## Catalog & Power


| Measure | DualSun | Q-Cells | Margin |
| --- | --- | --- | --- |
| Panel Models | 6 | 89 | +83 |
| Max Power | 500 W | 675 W | +175 W |
| Avg Power | 442 W | 468 W | +27 W |


## Efficiency


| Measure | DualSun | Q-Cells | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 22.00% | 23.20% | +1.20 pp |
| Avg Efficiency | 21.67% | 21.21% | +0.45 pp |


## Reliability & Warranty


| Measure | DualSun | Q-Cells | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.313%/°C | -0.325%/°C | +0.011 |
| Bifacial Share | 2 (33%) | 35 (39%) | +6 pp |
| Avg Warranty | 30.0 yrs | 27.0 yrs | +3.0 yr |


## Efficiency distribution

Q-Cells skews to higher efficiency: 2% of lineup is 23%+


| Efficiency band | DualSun | Q-Cells |
| --- | --- | --- |
| 20-21% | 1 (16.7%) | 29 (32.6%) |
| 21-22% | 4 (66.7%) | 30 (33.7%) |
| 22-23% | 1 (16.7%) | 21 (23.6%) |
| \<20% | 0 | 7 (7.9%) |
| 23%+ | 0 | 2 (2.2%) |


## Power distribution

Q-Cells offers more 600W+ panels (19% of lineup)


| Power band | DualSun | Q-Cells |
| --- | --- | --- |
| 400-499W | 5 (83.3%) | 41 (46.1%) |
| 500-599W | 1 (16.7%) | 11 (12.4%) |
| \<400W | 0 | 20 (22.5%) |
| 600-699W | 0 | 17 (19.1%) |


## Cell technology

Dominant cell tech: **TOPCon** (83%)

Dominant cell tech: **PERC** (43%)


| Technology | DualSun | Q-Cells |
| --- | --- | --- |
| TOPCon | 5 (83.3%) | 8 (9.0%) |
| PERC | 1 (16.7%) | 38 (42.7%) |
| N-type | 0 | 23 (25.8%) |
| Unknown | 0 | 20 (22.5%) |


## Top panels, DualSun


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [DS500-132M10B-01](https://comparepv.com/panel/dualsun-ds500-132m10b-01) | 500 | 20.8 | -0.360 | Monocrystalline |
| 2 | [DS450-108M10TB-03](https://comparepv.com/panel/huasun-ds450-108m10tb-03) | 450 | 22.0 | -0.280 | Monocrystalline |
| 3 | [DS425-108M10TB-03](https://comparepv.com/panel/huasun-ds425-108m10tb-03) | 425 | 21.8 | -0.310 | Monocrystalline |
| 4 | [SPRING4 425 TOPCon NI](https://comparepv.com/panel/huasun-spring4-425-topcon-ni) | 425 | 21.8 | -0.310 | Monocrystalline |
| 5 | [SPRING4 425 TOPCon F](https://comparepv.com/panel/huasun-spring4-425-topcon-f) | 425 | 21.8 | -0.310 | Monocrystalline |
| 6 | [SPRING4 425 TOPCon I](https://comparepv.com/panel/dualsun-spring4-425-topcon-i) | 425 | 21.8 | -0.310 | Monocrystalline |


## Top panels, Q-Cells


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [Q.PEAK DUO ML-G12S.3 / BFG 675](https://comparepv.com/panel/q-cells-q-peak-duo-ml-g12s-3-bfg-675) | 675 | 21.7 | -0.340 | Monocrystalline |
| 2 | [Q.PEAK DUO ML-G12S.3 / BFG 670](https://comparepv.com/panel/q-cells-q-peak-duo-ml-g12s-3-bfg-670) | 670 | 21.6 | -0.340 | Monocrystalline |
| 3 | [Q.PEAK DUO ML-G12S.3 / BFG 665](https://comparepv.com/panel/q-cells-q-peak-duo-ml-g12s-3-bfg-665) | 665 | 21.4 | -0.340 | Monocrystalline |
| 4 | [Q.PEAK DUO ML-G12S.3 / BFG 660](https://comparepv.com/panel/q-cells-q-peak-duo-ml-g12s-3-bfg-660) | 660 | 21.2 | -0.340 | Monocrystalline |
| 5 | [Q.PEAK DUO ML-G12S.3 / BFG 655](https://comparepv.com/panel/q-cells-q-peak-duo-ml-g12s-3-bfg-655) | 655 | 21.1 | -0.340 | Monocrystalline |
| 6 | [Q.PEAK DUO ML-G12S.3 / BFG 650](https://comparepv.com/panel/q-cells-q-peak-duo-ml-g12s-3-bfg-650) | 650 | 20.9 | -0.340 | Monocrystalline |
| 7 | [Q.TRON XL-G2.3 / BFG 645](https://comparepv.com/panel/q-cells-q-tron-xl-g2-3-bfg-645) | 645 | 23.1 | -0.290 | Monocrystalline |
| 8 | [Q.TRON XL-G2.3 / BFG 640](https://comparepv.com/panel/q-cells-q-tron-xl-g2-3-bfg-640) | 640 | 22.9 | -0.290 | Monocrystalline |
| 9 | [Q.TRON XL-G2.3 / BFG 635](https://comparepv.com/panel/hanwha-q-cells-america-inc-q-tron-xl-g2-3-bfg-635) | 635 | 22.7 | -0.300 | Monocrystalline |
| 10 | [Q.TRON XL-G2.3 / BFG 630](https://comparepv.com/panel/hanwha-q-cells-america-inc-q-tron-xl-g2-3-bfg-630) | 630 | 22.6 | -0.300 | Monocrystalline |


## Summary

DualSun is a French manufacturer founded in 2010 and headquartered in Marseille, originally built around a distinctive proposition: hybrid solar panels that produce both electricity and domestic hot water simultaneously. It operates at a small-to-mid scale and does not appear on BloombergNEF's Tier 1 module lists, reflecting its niche, innovation-led positioning rather than volume manufacturing. Q-Cells, operating under parent company Hanwha Group - a South Korean Fortune Global 500 conglomerate - traces its roots to a German solar pioneer and has grown into one of the largest panel manufacturers in the world, with annual production capacity in the range of 11-12 GW across facilities in South Korea, Malaysia, and the United States. Q-Cells has achieved BloombergNEF Top Tier bankability status and was named an S&P Global 2025 Tier 1 Cleantech company, giving it a far stronger institutional footprint for lender and investor confidence.

On the product side, DualSun's two core families are FLASH - a high-efficiency pure-PV panel built on TOPCon shingle cells aimed at premium residential rooftops - and SPRING, a PVT (photovoltaic-thermal) hybrid panel that can reach up to 80% combined solar yield when hot water generation is counted, making it a compelling choice for homeowners who also want to cut water-heating bills. Q-Cells addresses a much wider market: its Q.ANTUM-based PERC lineup covers budget-conscious residential and commercial rooftops, while the newer QTron TOPCon series reaches efficiencies up to 23.7% and targets premium residential and light commercial segments. Q-Cells also serves utility-scale ground-mount projects, a segment DualSun does not meaningfully address.

For a typical buyer in 2025, Q-Cells is the safer default - it offers proven bankability, broad installer availability, competitive pricing around $0.70-$0.80 per watt, and strong warranty support. DualSun deserves serious consideration specifically for homeowners who want to combine solar power with heat recovery, particularly in markets like France where installer expertise and incentive structures support PVT adoption. The two brands are not interchangeable: Q-Cells competes on scale and reliability across use cases, while DualSun occupies a specialized niche that Q-Cells does not serve.

\---LINKS---

\- https://www.solarreviews.com/blog/hanwha-q-cells-solar-panels-complete-review \| Expert Review of Qcells Solar Panels for 2025 - SolarReviews \| review

\- https://www.energysage.com/solar/best-solar-panels-complete-ranking/q-cells-solar-panels-complete-review/ \| Q CELLS Solar Panels: The Complete Review - EnergySage \| review

\- https://www.pv-magazine.com/press-releases/q-cells-achieves-top-tier-class-bankability-score-in-latest-bloombergnef-report/ \| Q Cells achieves Top Tier bankability score in BloombergNEF report \| article

\- https://www.hanwha.com/newsroom/news/press-releases/hanwha-qcells-named-an-s-p-global-2025-tier-1-cleantech-company.do \| Hanwha Qcells named 2025 S&P Global Tier 1 Cleantech company \| article

\- https://strategicenergy.eu/dualsun-technology-panels/ \| DualSun drives solar self-consumption revolution with hybrid panels \| article

Sources:

\- \[Expert Review of Qcells Solar Panels for 2025 - SolarReviews\](https://www.solarreviews.com/blog/hanwha-q-cells-solar-panels-complete-review)

\- \[Q CELLS Solar Panels: The Complete Review - EnergySage\](https://www.energysage.com/solar/best-solar-panels-complete-ranking/q-cells-solar-panels-complete-review/)

\- \[Q Cells achieves Top Tier bankability score in BloombergNEF report - PV Magazine\](https://www.pv-magazine.com/press-releases/q-cells-achieves-top-tier-class-bankability-score-in-latest-bloombergnef-report/)

\- \[Hanwha Qcells named 2025 S&P Global Tier 1 Cleantech company\](https://www.hanwha.com/newsroom/news/press-releases/hanwha-qcells-named-an-s-p-global-2025-tier-1-cleantech-company.do)

\- \[DualSun drives solar self-consumption revolution with hybrid panels - Strategic Energy Europe\](https://strategicenergy.eu/dualsun-technology-panels/)

Written by claude-sonnet from the figures above.


## Other comparisons

- [DualSun vs A.B. Energy](https://comparepv.com/dualsun-vs-a-b-energy)
- [AE Solar vs Q-Cells](https://comparepv.com/ae-solar-vs-q-cells)
- [DualSun vs AEET](https://comparepv.com/dualsun-vs-aeet)
- [AIKO vs Q-Cells](https://comparepv.com/aiko-vs-q-cells)
- [DualSun vs AKCOME](https://comparepv.com/dualsun-vs-akcome)
- [ARTsolar vs Q-Cells](https://comparepv.com/artsolar-vs-q-cells)


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Source: https://comparepv.com/dualsun-vs-q-cells

Not in this file, on the page: the distributions above drawn as charts.