---
title: "DAH Solar vs JA Solar - Brand Comparison | ComparePV"
description: "Compare DAH Solar vs JA Solar solar panels: full portfolio, efficiency, cell technology breakdown, warranty terms and company background."
source: "https://comparepv.com/dah-solar-vs-ja-solar"
---

# DAH Solar vs JA Solar

JA Solar has the broader catalog (504 vs 363 models). JA Solar leads on peak efficiency at 24.80%. DAH Solar leans bifacial (87% of lineup).


## The two companies


| Attribute | DAH Solar | JA Solar |
| --- | --- | --- |
| Country | China | China |
| Headquarters | Hefei | Beijing |
| Founded | 2009 | 2005 |
| Employees | 2000+ | 37,289 |
| Annual capacity | 10 GW/year | 100+ GW/year |
| Tier 1 | yes | yes |
| Listed |  | SZSE: 002459 |
| Website | null | [https://www.jasolar.com](https://www.jasolar.com) |

DAH Solar is an innovation-driven and technology-leading company specializing in PV product manufacturing. They focus on R&D, manufacturing, and sales of high-efficiency PV modules, integrated PV systems, and solar energy storage systems. DAH Solar is known for its patented Full-Screen PV Module and SolarUnit...

JA Solar is a global leader in the manufacturing of high-performance photovoltaic products. Founded in 2005, the company designs, develops, manufactures, and sells solar cells and modules. JA Solar's products are used in ground-mounted power plants, commercial & industrial rooftop PV systems, and residential rooftop...


## Catalog & Power


| Measure | DAH Solar | JA Solar | Margin |
| --- | --- | --- | --- |
| Panel Models | 363 | 504 | +141 |
| Max Power | 725 W | 740 W | +15 W |
| Avg Power | 520 W | 456 W | +64 W |


## Efficiency


| Measure | DAH Solar | JA Solar | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 23.34% | 24.80% | +1.46 pp |
| Avg Efficiency | 22.10% | 21.13% | +0.97 pp |


## Reliability & Warranty


| Measure | DAH Solar | JA Solar | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.299%/°C | -0.322%/°C | +0.023 |
| Bifacial Share | 316 (87%) | 238 (47%) | +40 pp |
| Avg Warranty | 29.4 yrs | 27.9 yrs | +1.5 yr |


## Efficiency distribution

JA Solar skews to higher efficiency: 15% of lineup is 23%+


| Efficiency band | DAH Solar | JA Solar |
| --- | --- | --- |
| \<20% | 10 (2.8%) | 112 (22.2%) |
| 20-21% | 22 (6.1%) | 99 (19.6%) |
| 21-22% | 86 (23.7%) | 112 (22.2%) |
| 22-23% | 217 (59.8%) | 107 (21.2%) |
| 23%+ | 28 (7.7%) | 74 (14.7%) |


## Power distribution

DAH Solar offers more 600W+ panels (22% of lineup)


| Power band | DAH Solar | JA Solar |
| --- | --- | --- |
| \<400W | 8 (2.2%) | 142 (28.2%) |
| 400-499W | 161 (44.4%) | 173 (34.3%) |
| 500-599W | 113 (31.1%) | 120 (23.8%) |
| 600-699W | 71 (19.6%) | 60 (11.9%) |
| 700W+ | 10 (2.8%) | 9 (1.8%) |


## Cell technology

Dominant cell tech: **TOPCon** (88%)

Dominant cell tech: **PERC** (49%)


| Technology | DAH Solar | JA Solar |
| --- | --- | --- |
| TOPCon | 319 (87.9%) | 146 (29.0%) |
| PERC | 44 (12.1%) | 247 (49.0%) |
| N-type | 0 | 90 (17.9%) |
| Unknown | 0 | 16 (3.2%) |
| HJT | 0 | 5 (1.0%) |


## Top panels, DAH Solar


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [DHN-66Y18/DG-725](https://comparepv.com/panel/dah-dhn-66y18-dg-725) | 725 | 23.3 | -0.290 | Monocrystalline |
| 2 | [DHN-66Y18/DG-720](https://comparepv.com/panel/dah-dhn-66y18-dg-720) | 720 | 23.2 | -0.290 | Monocrystalline |
| 3 | [DHN-66Y18/DG-715](https://comparepv.com/panel/dah-dhn-66y18-dg-715) | 715 | 23.0 | -0.290 | Monocrystalline |
| 4 | [DAS-DH132NC-715](https://comparepv.com/panel/dah-solar-das-dh132nc-715) | 715 | 23.0 | -0.280 | Monocrystalline |
| 5 | [DHN-66Y18/DG-710](https://comparepv.com/panel/dah-dhn-66y18-dg-710) | 710 | 22.9 | -0.290 | Monocrystalline |
| 6 | [DAS-DH132NC-710](https://comparepv.com/panel/dah-solar-das-dh132nc-710) | 710 | 22.9 | -0.280 | Monocrystalline |
| 7 | [DHN-66Y18/DG-705](https://comparepv.com/panel/dah-dhn-66y18-dg-705) | 705 | 22.7 | -0.290 | Monocrystalline |
| 8 | [DAS-DH132NC-705](https://comparepv.com/panel/dah-solar-das-dh132nc-705) | 705 | 22.7 | -0.280 | Monocrystalline |
| 9 | [DHN-66Y18/DG-700](https://comparepv.com/panel/dah-dhn-66y18-dg-700) | 700 | 22.5 | -0.290 | Monocrystalline |
| 10 | [DAS-DH132NC-700](https://comparepv.com/panel/dah-solar-das-dh132nc-700) | 700 | 22.5 | -0.280 | Monocrystalline |


## Top panels, JA Solar


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [JAM66D46-740/LB](https://comparepv.com/panel/ja-solar-jam66d46-740-lb) | 740 | 23.8 | -0.290 | Monocrystalline |
| 2 | [JAM66D46-735/LB](https://comparepv.com/panel/ja-solar-jam66d46-735-lb) | 735 | 23.7 | -0.290 | Monocrystalline |
| 3 | [JAM66D46-730/LB](https://comparepv.com/panel/ja-solar-jam66d46-730-lb) | 730 | 23.5 | -0.290 | Monocrystalline |
| 4 | [JAM66D46-725/LB](https://comparepv.com/panel/ja-solar-jam66d46-725-lb) | 725 | 23.3 | -0.290 | Monocrystalline |
| 5 | [JAM66D46-720/LB](https://comparepv.com/panel/ja-solar-jam66d46-720-lb) | 720 | 23.2 | -0.290 | Monocrystalline |
| 6 | [JAM66D46-715/LB](https://comparepv.com/panel/ja-solar-jam66d46-715-lb) | 715 | 23.0 | -0.290 | Monocrystalline |
| 7 | [JAM66D46-710/LB](https://comparepv.com/panel/ja-solar-jam66d46-710-lb) | 710 | 22.9 | -0.290 | Monocrystalline |
| 8 | [JAM66D46-705/LB](https://comparepv.com/panel/ja-solar-jam66d46-705-lb) | 705 | 22.7 | -0.290 | Monocrystalline |
| 9 | [JAM66D46-700/LB](https://comparepv.com/panel/ja-solar-jam66d46-700-lb) | 700 | 22.5 | -0.290 | Monocrystalline |
| 10 | [JAM66D46-695/LB](https://comparepv.com/panel/ja-solar-jam66d46-695-lb) | 695 | 22.4 | -0.290 | Monocrystalline |


## Summary

DAH Solar and JA Solar are both Chinese photovoltaic module manufacturers holding Tier 1 bankable status according to BloombergNEF, but they occupy very different positions in the global market. JA Solar, founded in 2005 and publicly listed on the Shenzhen Stock Exchange (SZSE), employs over 37,000 people and operates production capacity exceeding 100 GW, placing it among the top three solar module manufacturers in the world by shipment volume in the first half of 2025. DAH Solar, founded in 2009 with over 2,000 employees and a production capacity of 10 GW, is a smaller but steadily growing premium manufacturer that has maintained consecutive Tier 1 BNEF recognition throughout 2025. JA Solar's scale, financial transparency as a listed company, and two-decade track record give it a substantially different risk profile for large-scale procurement compared to the more specialized and focused DAH Solar.

On the technology front, DAH Solar has concentrated 79.6% of its 363-panel portfolio on TOPCon cell technology, yielding a higher average panel efficiency of 22.10% and a notably higher average output of 520 Wp - well above JA Solar's portfolio average of 441.7 Wp across 524 models. DAH Solar's bifacial penetration stands at 87% versus JA Solar's 44%, and its average temperature coefficient of -0.299%/°C is more favorable than JA Solar's -0.323%/°C, meaning less power loss under high-heat conditions. DAH Solar also offers a longer average warranty at 29.4 years compared to JA Solar's 27.9 years, which strengthens its case for residential rooftop installs and commercial C&I projects where long-term yield assurance and high power density on limited roof area are priorities. JA Solar counters with the broadest product range in the comparison: maximum output reaches 740 Wp and peak efficiency hits 24.4%, making it a natural fit for utility-scale ground-mount projects requiring the highest available wattage. The company's tenth consecutive "Top Performer" recognition in PVEL's 2025 scorecard reinforces its reputation for consistent, independently verified quality across high-volume supply.

For international buyers selecting between the two, the choice largely depends on project scale and risk tolerance. JA Solar is the lower-risk option for utility-scale developers and large C&I integrators who need guaranteed supply volumes, competitive pricing backed by massive production scale, and a long-established global service network. DAH Solar presents a compelling alternative for buyers prioritizing a modern, TOPCon-dominant portfolio with strong bifacial penetration, better thermal performance, and a longer warranty commitment - particularly in residential and mid-scale commercial applications. Both manufacturers are technically credible and bankable; the key differentiator is JA Solar's unmatched global scale and independent quality validation versus DAH Solar's more focused, technology-forward product strategy at a smaller but growing footprint.

Written by claude-sonnet from the figures above.


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- [AIKO vs JA Solar](https://comparepv.com/aiko-vs-ja-solar)
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- [ARTsolar vs JA Solar](https://comparepv.com/artsolar-vs-ja-solar)


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Source: https://comparepv.com/dah-solar-vs-ja-solar

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