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

# JA Solar vs LS Solar

JA Solar has the broader catalog (504 vs 2 models). JA Solar leads on peak efficiency at 24.80%. JA Solar leans bifacial (47% of lineup).


## The two companies


| Attribute | JA Solar | LS Solar |
| --- | --- | --- |
| 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 | LS Solar | Margin |
| --- | --- | --- | --- |
| Panel Models | 504 | 2 | +502 |
| Max Power | 740 W | 400 W | +340 W |
| Avg Power | 456 W | 400 W | +56 W |


## Efficiency


| Measure | JA Solar | LS Solar | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 24.80% | 20.46% | +4.34 pp |
| Avg Efficiency | 21.13% | 20.46% | +0.67 pp |


## Reliability & Warranty


| Measure | JA Solar | LS Solar | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.322%/°C | -0.370%/°C | +0.048 |
| Bifacial Share | 238 (47%) | 0 (0%) | +47 pp |
| Avg Warranty | 27.9 yrs | - |  |


## Efficiency distribution

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


| Efficiency band | JA Solar | LS Solar |
| --- | --- | --- |
| \<20% | 112 (22.2%) | 0 |
| 20-21% | 99 (19.6%) | 1 (50.0%) |
| 21-22% | 112 (22.2%) | 0 |
| 22-23% | 107 (21.2%) | 0 |
| 23%+ | 74 (14.7%) | 0 |
| Unknown | 0 | 1 (50.0%) |


## Power distribution

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


| Power band | JA Solar | LS Solar |
| --- | --- | --- |
| \<400W | 142 (28.2%) | 0 |
| 400-499W | 173 (34.3%) | 2 (100.0%) |
| 500-599W | 120 (23.8%) | 0 |
| 600-699W | 60 (11.9%) | 0 |
| 700W+ | 9 (1.8%) | 0 |


## Cell technology

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


| Technology | JA Solar | LS Solar |
| --- | --- | --- |
| PERC | 247 (49.0%) | 0 |
| TOPCon | 146 (29.0%) | 0 |
| N-type | 90 (17.9%) | 0 |
| Unknown | 16 (3.2%) | 2 (100.0%) |
| HJT | 5 (1.0%) | 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, LS Solar


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [STC 01](https://comparepv.com/panel/ls-solar-stc-01) | 400 | 20.5 | -0.370 | Monocrystalline |
| 2 | [400 W](https://comparepv.com/panel/ls-solar-400-w) | 400 | - | -0.370 | Monocrystalline |


## Summary

JA Solar is a Chinese solar panel manufacturer founded in 2005 and headquartered in China, consistently ranking among the top two global module suppliers by annual shipment volume. The company holds Tier 1 bankable status as recognized by S&P Global Commodity Insights and Bloomberg NEF, reflecting strong financial health, manufacturing scale, and global market influence. With a production capacity exceeding 100 GW per year, more than 37,000 employees, cumulative shipments approaching 300 GW across 178 countries, and a listing on the Shenzhen Stock Exchange (SZSE), JA Solar is one of the most established and financially credible names in the photovoltaic industry. LS Solar, by contrast, is a considerably smaller and less-documented manufacturer that does not hold Tier 1 bankable status. Its known product portfolio consists of only two panel models, both rated at 400 Wp, with no publicly available information on founding year, employee headcount, or cell technology type - limiting the depth of any comparative assessment.

JA Solar's portfolio of 524 panel models spans a wide power and application range, with a maximum output of 740 Wp and a peak efficiency of 24.4%. The average panel efficiency of 20.87% and a low average temperature coefficient of Pmax at -0.323%/°C indicate strong real-world performance across varied climatic conditions. Nearly 44% of its modules are bifacial, making the brand well suited for utility-scale ground-mount projects as well as commercial and industrial (C&I) rooftop installations. Average warranty coverage approaching 28 years provides long-term financial security and simplifies project financing. The portfolio is led by PERC technology (over 52% of models), complemented by a growing TOPCon lineup targeting higher efficiency segments. LS Solar's two-model offering reaches a maximum efficiency of 20.46% with a higher temperature coefficient of -0.37%/°C and includes no bifacial options, positioning it narrowly toward small-scale residential rooftop applications where project financing and bankability are not primary requirements.

For international buyers evaluating the two manufacturers - whether for residential, C&I, or utility-scale projects - JA Solar presents a substantially stronger value proposition. Its Tier 1 bankable status facilitates debt financing, its broad and technologically diverse portfolio accommodates a wide range of project types, and its established global service network reduces long-term operational risk. LS Solar, given the very limited technical data available and the absence of any bankability recognition, would be difficult to recommend for projects where lender confidence, warranty enforcement, or long-term performance guarantees are material considerations.

Written by claude-sonnet from the figures above.


## Other comparisons

- [JA Solar vs A.B. Energy](https://comparepv.com/ja-solar-vs-a-b-energy)
- [AE Solar vs LS Solar](https://comparepv.com/ae-solar-vs-ls-solar)
- [JA Solar vs AEET](https://comparepv.com/ja-solar-vs-aeet)
- [AIKO vs LS Solar](https://comparepv.com/aiko-vs-ls-solar)
- [JA Solar vs AKCOME](https://comparepv.com/ja-solar-vs-akcome)
- [ARTsolar vs LS Solar](https://comparepv.com/artsolar-vs-ls-solar)


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

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