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

# JA Solar vs Lefeng Solar

JA Solar has the broader catalog (504 vs 0 models). JA Solar leans bifacial (47% of lineup).


## The two companies


| Attribute | JA Solar | Lefeng Solar |
| --- | --- | --- |
| Country | China | China |
| Headquarters | Beijing | Ningbo, Zhejiang Province |
| Founded | 2005 | 2005 |
| Employees | 37,289 |  |
| Annual capacity | 100+ GW/year | 2 GW/year |
| Tier 1 | yes |  |
| Listed | SZSE: 002459 |  |
| Website | [https://www.jasolar.com](https://www.jasolar.com) | [http://www.lefnsolar.com](http://www.lefnsolar.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...

Ningbo Lefeng New Energy Co., Ltd. is a leading manufacturer in the photovoltaic industry, specializing in the production and sales of PV modules and cells. The company is also involved in the development, construction, and maintenance of photovoltaic power plants. Lefeng is committed to providing high-quality...


## Catalog & Power


| Measure | JA Solar | Lefeng Solar | Margin |
| --- | --- | --- | --- |
| Panel Models | 504 | 0 | +504 |
| Max Power | 740 W | 0 W | +740 W |
| Avg Power | 456 W | 0 W | +456 W |


## Efficiency


| Measure | JA Solar | Lefeng Solar | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 24.80% | - |  |
| Avg Efficiency | 21.13% | - |  |


## Reliability & Warranty


| Measure | JA Solar | Lefeng Solar | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.322%/°C | - |  |
| 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 | Lefeng Solar |
| --- | --- | --- |
| \<20% | 112 (22.2%) | 0 |
| 20-21% | 99 (19.6%) | 0 |
| 21-22% | 112 (22.2%) | 0 |
| 22-23% | 107 (21.2%) | 0 |
| 23%+ | 74 (14.7%) | 0 |


## Power distribution

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


| Power band | JA Solar | Lefeng Solar |
| --- | --- | --- |
| \<400W | 142 (28.2%) | 0 |
| 400-499W | 173 (34.3%) | 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 | Lefeng Solar |
| --- | --- | --- |
| PERC | 247 (49.0%) | 0 |
| TOPCon | 146 (29.0%) | 0 |
| N-type | 90 (17.9%) | 0 |
| Unknown | 16 (3.2%) | 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 |


## Summary

JA Solar was founded in 2005 in China and has grown into one of the world's largest solar module manufacturers, employing over 37,000 people and operating with a production capacity exceeding 100 GW per year. Listed on the Shenzhen Stock Exchange (SZSE), the company holds Tier 1 status from S&P Global Commodity Insights, confirming its bankability for project financing by institutional lenders worldwide. By mid-2025, cumulative global shipments had reached nearly 300 GW across 178 countries, and Wood Mackenzie ranked JA Solar jointly at the top of its Global Solar Module Manufacturer Ranking for H1 2025. Lefeng Solar (Ningbo Lefeng New Energy Co., Ltd.) is a considerably smaller Chinese manufacturer, also founded in 2005, with an annual production capacity of 2 GW and an 83,000 m2 facility in Ningbo. Lefeng does not appear on Tier 1 lists, and independent third-party reviews of its products are scarce, with most available feedback sourced from the company's own website or trade-fair customer testimonials.

JA Solar's portfolio of 524 panels spans residential, commercial, and utility-scale applications, with peak power reaching 740 Wp and maximum cell efficiency at 24.4%. PERC technology accounts for over 52% of the lineup, while bifacial modules represent around 44% of offerings - well suited for both sloped residential rooftop installs and utility-scale ground-mount projects where rear-side irradiance gain is valuable. The company achieved Top Performer status in the PVEL 2025 Scorecard for the tenth consecutive time, adding further credibility for commercial C&I and large infrastructure projects requiring bankable references. Lefeng Solar offers modules ranging from approximately 395 W to 670 W, including bifacial and TOPCon variants, and positions itself as a cost-competitive supplier for B2B export markets. It may suit budget-sensitive procurements, though the absence of Tier 1 status and limited independent test data constrain its appeal for projects requiring bank financing or institutional-grade due diligence.

For international buyers, JA Solar is the clearly stronger choice for projects requiring bankability, long-term warranty assurance, and a proven global supply chain backed by independent performance validation. Lefeng Solar could be considered for smaller, price-driven orders where financing requirements are minimal and the buyer has established its own direct quality controls in place.

Written by claude-sonnet from the figures above.


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

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