---
title: "AU Optronics vs Q-SUN Solar - Brand Comparison | ComparePV"
description: "Compare AU Optronics vs Q-SUN Solar solar panels: full portfolio, efficiency, cell technology breakdown, warranty terms and company background."
source: "https://comparepv.com/au-optronics-vs-q-sun-solar"
---

# AU Optronics vs Q-SUN Solar

Q-SUN Solar has the broader catalog (111 vs 1 models). Q-SUN Solar leads on peak efficiency at 23.70%. Q-SUN Solar leans bifacial (68% of lineup).


## The two companies


| Attribute | AU Optronics | Q-SUN Solar |
| --- | --- | --- |
| Country | Taiwan | China |
| Headquarters | Hsinchu |  |
| Founded | 1996 | 2014 |
| Employees | 41000+ |  |
| Annual capacity |  |  |
| Tier 1 | yes | no |
| Listed | TWSE (Taiwan Stock Exchange): 2409 |  |
| Website | [https://www.auo.com/en-global](https://www.auo.com/en-global) | [https://www.q-sunsolar.com](https://www.q-sunsolar.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...

Qn-SOLAR officially launched its global PV business in 2022. The company is headquartered in Shanghai, China, and has four manufacturing bases in China. As a professional and integrated company, Qn-SOLAR operates in various fields of PV upstream and downstream, achieving an annual production capacity of 20GW PV cells...


## Catalog & Power


| Measure | AU Optronics | Q-SUN Solar | Margin |
| --- | --- | --- | --- |
| Panel Models | 1 | 111 | +110 |
| Max Power | 170 W | 730 W | +560 W |
| Avg Power | 170 W | 543 W | +373 W |


## Efficiency


| Measure | AU Optronics | Q-SUN Solar | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 16.00% | 23.70% | +7.70 pp |
| Avg Efficiency | 16.00% | 21.91% | +5.91 pp |


## Reliability & Warranty


| Measure | AU Optronics | Q-SUN Solar | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.438%/°C | -0.303%/°C | +0.135 |
| Bifacial Share | 0 (0%) | 76 (68%) | +68 pp |
| Avg Warranty | - | 28.7 yrs |  |


## Efficiency distribution

Q-SUN Solar skews to higher efficiency: 11% of lineup is 23%+


| Efficiency band | AU Optronics | Q-SUN Solar |
| --- | --- | --- |
| \<20% | 1 (100.0%) | 0 |
| 20-21% | 0 | 15 (13.5%) |
| 21-22% | 0 | 39 (35.1%) |
| 22-23% | 0 | 45 (40.5%) |
| 23%+ | 0 | 12 (10.8%) |


## Power distribution

Q-SUN Solar offers more 600W+ panels (30% of lineup)


| Power band | AU Optronics | Q-SUN Solar |
| --- | --- | --- |
| \<400W | 1 (100.0%) | 1 (0.9%) |
| 400-499W | 0 | 40 (36.0%) |
| 500-599W | 0 | 37 (33.3%) |
| 600-699W | 0 | 25 (22.5%) |
| 700W+ | 0 | 8 (7.2%) |


## Cell technology

Dominant cell tech: **N-type** (42%)


| Technology | AU Optronics | Q-SUN Solar |
| --- | --- | --- |
| Unknown | 1 (100.0%) | 0 |
| N-type | 0 | 47 (42.3%) |
| PERC | 0 | 39 (35.1%) |
| TOPCon | 0 | 20 (18.0%) |
| HJT | 0 | 5 (4.5%) |


## 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, Q-SUN Solar


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [QN-730HJT-01](https://comparepv.com/panel/q-sun-solar-qn-730hjt-01) | 730 | 23.5 | -0.240 | Monocrystalline |
| 2 | [QN-725HJT-01](https://comparepv.com/panel/q-sun-solar-qn-725hjt-01) | 725 | 23.5 | -0.240 | Monocrystalline |
| 3 | [QN-720HJT-01](https://comparepv.com/panel/q-sun-solar-qn-720hjt-01) | 720 | 23.3 | -0.240 | Monocrystalline |
| 4 | [QN-715HJT-01](https://comparepv.com/panel/q-sun-solar-qn-715hjt-01) | 715 | 23.2 | -0.240 | Monocrystalline |
| 5 | [QN-710HJT-01](https://comparepv.com/panel/q-sun-solar-qn-710hjt-01) | 710 | 23.0 | -0.240 | Monocrystalline |
| 6 | [QN-710HT-01](https://comparepv.com/panel/q-sun-solar-qn-710ht-01) | 710 | 22.9 | -0.300 | Monocrystalline |
| 7 | [QN-705HT-01](https://comparepv.com/panel/q-sun-solar-qn-705ht-01) | 705 | 22.7 | -0.300 | Monocrystalline |
| 8 | [QN-700HT-01](https://comparepv.com/panel/q-sun-solar-qn-700ht-01) | 700 | 22.5 | -0.300 | Monocrystalline |
| 9 | [QN-695HT-01](https://comparepv.com/panel/q-sun-solar-qn-695ht-01) | 695 | 22.4 | -0.300 | Monocrystalline |
| 10 | [QN-690HT-01](https://comparepv.com/panel/q-sun-solar-qn-690ht-01) | 690 | 22.2 | -0.300 | Monocrystalline |


## Other comparisons

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


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Source: https://comparepv.com/au-optronics-vs-q-sun-solar

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