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

# JA Solar vs SunLink

JA Solar has the broader catalog (504 vs 67 models). JA Solar leads on peak efficiency at 24.80%. JA Solar leans bifacial (47% of lineup).


## The two companies


| Attribute | JA Solar | SunLink |
| --- | --- | --- |
| Country | China |  |
| Headquarters | Beijing |  |
| Founded | 2005 |  |
| Employees | 37,289 |  |
| Annual capacity | 100+ GW/year |  |
| Tier 1 | yes | no |
| Listed | SZSE: 002459 |  |
| Website | [https://www.jasolar.com](https://www.jasolar.com) |  |

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 | JA Solar | SunLink | Margin |
| --- | --- | --- | --- |
| Panel Models | 504 | 67 | +437 |
| Max Power | 740 W | 700 W | +40 W |
| Avg Power | 456 W | 398 W | +58 W |


## Efficiency


| Measure | JA Solar | SunLink | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 24.80% | 22.80% | +2.00 pp |
| Avg Efficiency | 21.13% | 19.94% | +1.20 pp |


## Reliability & Warranty


| Measure | JA Solar | SunLink | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.322%/°C | -0.340%/°C | +0.018 |
| Bifacial Share | 238 (47%) | 18 (27%) | +20 pp |
| Avg Warranty | 27.9 yrs | 26.8 yrs | +1.1 yr |


## Efficiency distribution

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


| Efficiency band | JA Solar | SunLink |
| --- | --- | --- |
| \<20% | 112 (22.2%) | 35 (52.2%) |
| 20-21% | 99 (19.6%) | 9 (13.4%) |
| 21-22% | 112 (22.2%) | 10 (14.9%) |
| 22-23% | 107 (21.2%) | 13 (19.4%) |
| 23%+ | 74 (14.7%) | 0 |


## Power distribution

JA Solar offers more 600W+ panels (14% of lineup)


| Power band | JA Solar | SunLink |
| --- | --- | --- |
| \<400W | 142 (28.2%) | 36 (53.7%) |
| 400-499W | 173 (34.3%) | 23 (34.3%) |
| 500-599W | 120 (23.8%) | 4 (6.0%) |
| 600-699W | 60 (11.9%) | 3 (4.5%) |
| 700W+ | 9 (1.8%) | 1 (1.5%) |


## Cell technology

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

Dominant cell tech: **PERC** (63%)


| Technology | JA Solar | SunLink |
| --- | --- | --- |
| PERC | 247 (49.0%) | 42 (62.7%) |
| TOPCon | 146 (29.0%) | 18 (26.9%) |
| N-type | 90 (17.9%) | 0 |
| Unknown | 16 (3.2%) | 5 (7.5%) |
| HJT | 5 (1.0%) | 2 (3.0%) |


## 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 |


## Top panels, SunLink


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [SL6N132D-700W](https://comparepv.com/panel/sunlink-sl6n132d-700w) | 700 | 22.5 | -0.240 | Monocrystalline |
| 2 | [SL6N132D-695W](https://comparepv.com/panel/sunlink-sl6n132d-695w) | 695 | 22.4 | -0.240 | Monocrystalline |
| 3 | [SL5N144D-610W](https://comparepv.com/panel/sunlink-sl5n144d-610w) | 610 | 22.6 | -0.300 | Monocrystalline |
| 4 | [SL5N144D-605W](https://comparepv.com/panel/sunlink-sl5n144d-605w) | 605 | 22.4 | -0.300 | Monocrystalline |
| 5 | [SL5M144-550](https://comparepv.com/panel/sunlink-sl5m144-550) | 550 | 21.3 | -0.350 | Monocrystalline |
| 6 | [SL5M144-545](https://comparepv.com/panel/sunlink-sl5m144-545) | 545 | 21.1 | -0.350 | Monocrystalline |
| 7 | [SL5M144-540](https://comparepv.com/panel/sunlink-sl5m144-540) | 540 | 20.9 | -0.350 | Monocrystalline |
| 8 | [SL5M144-535](https://comparepv.com/panel/sunlink-sl5m144-535) | 535 | 20.7 | -0.350 | Monocrystalline |
| 9 | [SL5N108D-455W](https://comparepv.com/panel/sunlink-sl5n108d-455w) | 455 | 22.8 | -0.300 | Monocrystalline |
| 10 | [SL5N108D-450W](https://comparepv.com/panel/sunlink-sl5n108d-450w) | 450 | 22.5 | -0.300 | Monocrystalline |


## Summary

JA Solar and SunLink occupy very different tiers of the global solar PV market. JA Solar was founded in 2005 in China and has grown into one of the world's largest module manufacturers, with a workforce exceeding 37,000 employees and a production capacity of more than 100 GW. The company jointly topped Wood Mackenzie's global module manufacturer ranking for the first half of 2025 alongside Trinasolar, and holds Tier 1 bankable status with a listing on the Shenzhen Stock Exchange (SZSE) - credentials that give financiers, insurers, and project developers a high degree of confidence. SunLink is a considerably smaller manufacturer that does not carry Tier 1 status and offers a portfolio of 67 modules, compared to JA Solar's 524. On core technical metrics, JA Solar leads across the board: maximum module power of 740 Wp versus 700 Wp for SunLink, peak efficiency of 24.4% versus 22.8%, a better average temperature coefficient for Pmax (-0.323%/°C versus -0.340%/°C) indicating lower thermal losses in warm climates, and a substantially higher share of bifacial products (44.3% versus 26.9%). Both manufacturers rely predominantly on PERC cell technology as their top-selling category.

JA Solar's breadth of portfolio makes it suitable across virtually all installation segments. Its high-power modules above 700 Wp are well suited for utility-scale ground-mount and large commercial C&I projects seeking to minimize balance-of-system costs per watt, while mid-range models address residential rooftop installations where space efficiency and aesthetics also matter. The average product warranty of nearly 28 years, combined with ten consecutive PVEL Top Performer certifications through 2025, reinforces long-term yield confidence. SunLink's narrower lineup - centered on modules averaging around 398 Wp - is more suited to standard residential rooftop installs or small commercial projects where budget constraints take priority and bankability requirements are absent. Its higher PERC concentration (62.7%) keeps the portfolio technically straightforward, but the lack of Tier 1 status limits its viability for project-financed or insurer-reviewed deployments.

For international buyers choosing between the two, JA Solar is the lower-risk option for any project where lender approval, insurance underwriting, or long-term resale value is a consideration. SunLink may appeal to cost-sensitive cash purchases in smaller residential segments, but its restricted portfolio and non-Tier-1 standing make it a secondary choice for developers, EPCs, or installers seeking a versatile, bankable supply partner.

Written by claude-sonnet from the figures above.


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- [AIKO vs SunLink](https://comparepv.com/aiko-vs-sunlink)
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- [ARTsolar vs SunLink](https://comparepv.com/artsolar-vs-sunlink)


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

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