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JA Solar vs Lefeng Solar - solar panel manufacturer comparison

JA Solar
China Founded 2005 Tier 1
Read the JA Solar review
VS
Lefeng Solar
China Founded 2005
Read the Lefeng Solar review
At a glance

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

Both catalogues are read from the manufacturers' own datasheets. A brand is not scored against the market here, only against the other brand on this page.

Panel models
504 0
Highest power
740 Wp 0 Wp
Best efficiency
24.8% -
Average efficiency
21.1% -
Bifacial share
47% 0%
Average warranty
28 yrs -
01

The two companies

Company facts, not datasheet figures
JA Solar

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...

Founded
2005
Headquarters
Beijing, China
Annual capacity
100+ GW/year
Employees
37,289
Tier 1 bankable
Yes
Lefeng Solar

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...

Founded
2005
Headquarters
Ningbo, Zhejiang Province, China
Annual capacity
2 GW/year
02

Catalogue against catalogue

Averages over every model in the database
Metric JA Solar Lefeng Solar
Catalog & Power
Panel Models 504+504 0
Max Power 740 W+740 W 0 W
Avg Power 456 W+456 W 0 W
Efficiency
Max Efficiency 24.80% -
Avg Efficiency 21.13% -
Reliability & Warranty
Avg Temp Coefficient -0.322%/°C -
Bifacial Share 238 (47%)+47 pp 0 (0%)
Avg Warranty 27.9 yrs -

An average over a catalogue describes the range a manufacturer publishes, not the module you would buy. A brand with two flagship panels and eighty older ones averages worse than one that has retired its back catalogue.

03

What each of them builds

Cell technology across the market
Efficiency spread
Share of each catalogue in every efficiency band

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

Power spread
Share of each catalogue in every power band

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

JA Solar cell technology
Share of their models by cell architecture

Dominant cell tech: <strong>PERC</strong> (49%)

Lefeng Solar cell technology
Share of their models by cell architecture
04

The flagships

Highest-power models from each brand
Lefeng Solar all models
No panels from this manufacturer are in the database yet.
05

Written summary

Checking cache...

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.

Generated by Claude Sonnet · 2026-05-13

06

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Something missing from a catalogue? Both lists are built from the datasheets in the database. If a model is absent, it has not been ingested yet.

Shop prices: See 393 JA Solar offers

Comparisons are computed from manufacturer datasheets held in the ComparePV database and may not reflect a brand's complete current lineup. Nothing on this page is paid placement.