---
title: "AU Optronics vs SunKean - Brand Comparison | ComparePV"
description: "Compare AU Optronics vs SunKean solar panels: full portfolio, efficiency, cell technology breakdown, warranty terms and company background."
source: "https://comparepv.com/au-optronics-vs-sunkean"
image: "https://comparepv.com/og/compare/manufacturers/au-optronics/sunkean.png"
---

# AU Optronics vs SunKean

SunKean has the broader catalog (57 vs 1 models). SunKean leads on peak efficiency at 23.52%. SunKean leans bifacial (77% of lineup).


## The two companies


| Attribute | AU Optronics | SunKean |
| --- | --- | --- |
| Country | Taiwan | China |
| Headquarters | Hsinchu | Wuxi, Jiangsu |
| Founded | 1996 | 2013 |
| Employees | 41000+ | 200+ |
| Annual capacity |  |  |
| Tier 1 | yes |  |
| Listed | TWSE (Taiwan Stock Exchange): 2409 |  |
| Website | [https://www.auo.com/en-global](https://www.auo.com/en-global) | [https://www.sunkean.com](https://www.sunkean.com) |

AU Optronics (AUO) is a technology-driven company based in Taiwan, specializing in optoelectronics and display solutions. They deliver products and services that advance innovation in areas like display technology, system solutions, industrial intelligence, healthcare, and energy. AUO operates globally across Asia...

SUNKEAN specializes in providing sustainable energy connection solutions to global customers. They offer a range of products including solar cables, wire harnesses, and related connectors for photovoltaic, energy storage, and charging sectors. As of 2025, SUNKEAN employs over 200 people and operates a production...


## Catalog & Power


| Measure | AU Optronics | SunKean | Margin |
| --- | --- | --- | --- |
| Panel Models | 1 | 57 | +56 |
| Max Power | 170 W | 700 W | +530 W |
| Avg Power | 170 W | 447 W | +277 W |


## Efficiency


| Measure | AU Optronics | SunKean | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 16.00% | 23.52% | +7.52 pp |
| Avg Efficiency | 16.00% | 21.25% | +5.25 pp |


## Reliability & Warranty


| Measure | AU Optronics | SunKean | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.438%/°C | -0.300%/°C | +0.138 |
| Bifacial Share | 0 (0%) | 44 (77%) | +77 pp |
| Avg Warranty | - | 28.9 yrs |  |


## Efficiency distribution

SunKean skews to higher efficiency: 9% of lineup is 23%+


| Efficiency band | AU Optronics | SunKean |
| --- | --- | --- |
| \<20% | 1 (100.0%) | 9 (15.8%) |
| 20-21% | 0 | 7 (12.3%) |
| 21-22% | 0 | 16 (28.1%) |
| 22-23% | 0 | 20 (35.1%) |
| 23%+ | 0 | 5 (8.8%) |


## Power distribution

SunKean offers more 600W+ panels (9% of lineup)


| Power band | AU Optronics | SunKean |
| --- | --- | --- |
| \<400W | 1 (100.0%) | 11 (19.3%) |
| 400-499W | 0 | 35 (61.4%) |
| 500-599W | 0 | 6 (10.5%) |
| 600-699W | 0 | 4 (7.0%) |
| 700W+ | 0 | 1 (1.8%) |


## Cell technology

Dominant cell tech: TOPCon (39%)


| Technology | AU Optronics | SunKean |
| --- | --- | --- |
| Unknown | 1 (100.0%) | 0 |
| TOPCon | 0 | 22 (38.6%) |
| HJT | 0 | 14 (24.6%) |
| PERC | 0 | 13 (22.8%) |
| N-type | 0 | 8 (14.0%) |


## Top panels, AU Optronics


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [ASM170M](https://comparepv.com/panel/au-optronics-asm170m) | 170 | 16.0 | -0.438 | Monocrystalline |


## Top panels, SunKean


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [SKT700M12-132D5](https://comparepv.com/panel/sunkean-skt700m12-132d5) | 700 | 22.5 | -0.260 | Monocrystalline |
| 2 | [SKT695M12-132D5](https://comparepv.com/panel/sunkean-skt695m12-132d5) | 695 | 22.4 | -0.260 | Monocrystalline |
| 3 | [SKT690M12-132D5](https://comparepv.com/panel/sunkean-skt690m12-132d5) | 690 | 22.2 | -0.260 | Monocrystalline |
| 4 | [SKT685M12-132D5](https://comparepv.com/panel/sunkean-skt685m12-132d5) | 685 | 22.1 | -0.260 | Monocrystalline |
| 5 | [SKT680M12-132D5](https://comparepv.com/panel/sunkean-skt680m12-132d5) | 680 | 21.9 | -0.260 | Monocrystalline |
| 6 | [SKT555M10](https://comparepv.com/panel/sunkean-skt555m10) | 555 | 21.5 | -0.350 | Monocrystalline |
| 7 | [SKT550M10](https://comparepv.com/panel/sunkean-skt550m10) | 550 | 21.3 | -0.350 | Monocrystalline |
| 8 | [SKT545M10](https://comparepv.com/panel/sunkean-skt545m10) | 545 | 21.1 | -0.350 | Monocrystalline |
| 9 | [SKT540M10](https://comparepv.com/panel/sunkean-skt540m10) | 540 | 20.9 | -0.350 | Monocrystalline |
| 10 | [SKT535M10](https://comparepv.com/panel/sunkean-skt535m10) | 535 | 20.7 | -0.350 | Monocrystalline |


## Summary

I now have enough to write a grounded, hedged comparison.

AU Optronics is a Taiwan-based electronics manufacturer, headquartered in Hsinchu, founded in 1996, best known as a major TFT-LCD display producer that expanded into photovoltaics starting around 2008. Its solar modules have historically been sold under the BenQ Solar brand, marketed through a US-based BenQ Solar division since roughly 2012, and AUO/BenQ Solar has appeared on Tier 1 bankability lists in the past. Independent production-capacity figures in gigawatts are not consistently published, since solar is a secondary business line for AUO rather than its core operation. SunKean, formally Sunkean Cable Co. (also referenced as Wuxi Sun King Energy Technology), is a China-based company headquartered in Wuxi, Jiangsu, founded in 2013, that is primarily a manufacturer of solar cables, wire harnesses, and PV connectors rather than a dedicated panel maker; it does list a handful of crystalline panel datasheets in industry databases, but it lacks the sustained brand history, Tier 1 listings, or independent reviews that AU Optronics has accumulated. On institutional footprint, AU Optronics is the stronger and more established name, backed by a large, diversified parent company and decades of manufacturing scale, whereas SunKean is a newer, narrower player whose core competency lies in balance-of-system components.

In terms of product use, AU Optronics panels under the BenQ Solar name have generally targeted residential and small commercial rooftop installations in North America and other markets, with module lines built around conventional multi- and poly-crystalline and PERC-era cell designs typical of the mid-2010s product generation; there is no strong evidence of AUO pushing into modern TOPCon or HJT cell technology at scale. SunKean's panel offerings, where they exist, appear positioned as commodity crystalline modules likely intended for budget-conscious or regional projects, but the company's primary value proposition to the solar industry is its cabling and connector ecosystem, which supports installers and system integrators rather than end-use panel buyers directly.

For a typical buyer in 2025 comparing these two specifically as panel suppliers, AU Optronics is the more established and independently verifiable choice, with a longer track record, prior Tier 1 recognition, and broader retail-review coverage, though buyers should note its panel technology lineage is older rather than cutting-edge. SunKean is better understood as a solar cable and connector specialist that also lists some panel products, so it is not really an apples-to-apples competitor for panel selection, and buyers evaluating panels head-to-head should treat SunKean's module catalog with more caution given the limited independent verification available.

\---LINKS---

\- https://www.energysage.com/supplier/21601/auo-benq-solar/ \| AUO BenQ Solar - Profile and Reviews \| review

\- https://www.energysage.com/solar-panels/auo-benq-solar/ \| AUO BenQ Solar Panels catalog and specs \| review

\- https://www.renvu.com/blogs/learn/tier-1-solar-panels-list-2025-updated-manufacturers-rankings \| Tier 1 Solar Panels List 2025: Updated Manufacturers and Rankings \| article

\- https://www.enfsolar.com/sunkean \| Sunkean Cable Co., Ltd. company and product profile \| article

\- https://www.enfsolar.com/pv/panel-datasheet/crystalline/47454 \| Sunkean SMF310M Solar Panel Datasheet \| review

Written by claude-sonnet-5 from the figures above.


## Other comparisons

- [AU Optronics vs A.B. Energy](https://comparepv.com/au-optronics-vs-a-b-energy)
- [AE Solar vs SunKean](https://comparepv.com/ae-solar-vs-sunkean)
- [AU Optronics vs AEET](https://comparepv.com/au-optronics-vs-aeet)
- [AIKO vs SunKean](https://comparepv.com/aiko-vs-sunkean)
- [AU Optronics vs AKCOME](https://comparepv.com/au-optronics-vs-akcome)
- [ARTsolar vs SunKean](https://comparepv.com/artsolar-vs-sunkean)


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Source: https://comparepv.com/au-optronics-vs-sunkean

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