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

# JA Solar vs Seraphim

JA Solar has the broader catalog (504 vs 160 models). JA Solar leads on peak efficiency at 24.80%. Seraphim leans bifacial (69% of lineup).


## The two companies


| Attribute | JA Solar | Seraphim |
| --- | --- | --- |
| Country | China | China |
| Headquarters | Beijing | Changzhou |
| Founded | 2005 | 2011 |
| Employees | 37,289 | 1001-5000 |
| Annual capacity | 100+ GW/year | 13 GW/year |
| Tier 1 | yes | yes |
| Listed | SZSE: 002459 |  |
| Website | [https://www.jasolar.com](https://www.jasolar.com) | [https://www.seraphim-energy.com](https://www.seraphim-energy.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...

Seraphim is a world-class solar products manufacturer specializing in research, development, production, and sales of solar PV products. The company has achieved significant milestones, outpacing competitors in production capacity and innovative designs. Seraphim is committed to technological innovation and...


## Catalog & Power


| Measure | JA Solar | Seraphim | Margin |
| --- | --- | --- | --- |
| Panel Models | 504 | 160 | +344 |
| Max Power | 740 W | 730 W | +10 W |
| Avg Power | 456 W | 549 W | +93 W |


## Efficiency


| Measure | JA Solar | Seraphim | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 24.80% | 23.50% | +1.30 pp |
| Avg Efficiency | 21.13% | 21.82% | +0.69 pp |


## Reliability & Warranty


| Measure | JA Solar | Seraphim | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.322%/°C | -0.316%/°C | +0.006 |
| Bifacial Share | 238 (47%) | 111 (69%) | +22 pp |
| Avg Warranty | 27.9 yrs | 28.8 yrs | +0.9 yr |


## Efficiency distribution

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


| Efficiency band | JA Solar | Seraphim |
| --- | --- | --- |
| \<20% | 112 (22.2%) | 0 |
| 20-21% | 99 (19.6%) | 32 (20.0%) |
| 21-22% | 112 (22.2%) | 58 (36.2%) |
| 22-23% | 107 (21.2%) | 51 (31.9%) |
| 23%+ | 74 (14.7%) | 19 (11.9%) |


## Power distribution

Seraphim offers more 600W+ panels (35% of lineup)


| Power band | JA Solar | Seraphim |
| --- | --- | --- |
| \<400W | 142 (28.2%) | 2 (1.2%) |
| 400-499W | 173 (34.3%) | 55 (34.4%) |
| 500-599W | 120 (23.8%) | 47 (29.4%) |
| 600-699W | 60 (11.9%) | 45 (28.1%) |
| 700W+ | 9 (1.8%) | 11 (6.9%) |


## Cell technology

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

Dominant cell tech: **PERC** (52%)


| Technology | JA Solar | Seraphim |
| --- | --- | --- |
| PERC | 247 (49.0%) | 84 (52.5%) |
| TOPCon | 146 (29.0%) | 66 (41.2%) |
| N-type | 90 (17.9%) | 4 (2.5%) |
| Unknown | 16 (3.2%) | 0 |
| HJT | 5 (1.0%) | 6 (3.8%) |


## 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, Seraphim


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [SRP-730-BHC-BG](https://comparepv.com/panel/seraphim-srp-730-bhc-bg) | 730 | 23.5 | -0.258 | Monocrystalline |
| 2 | [SRP-725-BHC-BG](https://comparepv.com/panel/seraphim-srp-725-bhc-bg) | 725 | 23.3 | -0.258 | Monocrystalline |
| 3 | [SRP-720-BHC-BG](https://comparepv.com/panel/seraphim-srp-720-bhc-bg) | 720 | 23.2 | -0.258 | Monocrystalline |
| 4 | [SRP-720-BTC-BG](https://comparepv.com/panel/seraphim-srp-720-btc-bg) | 720 | 23.2 | -0.290 | Monocrystalline |
| 5 | [SRP-715-BHC-BG](https://comparepv.com/panel/seraphim-srp-715-bhc-bg) | 715 | 23.0 | -0.258 | Monocrystalline |
| 6 | [SRP-715-BTC-BG](https://comparepv.com/panel/seraphim-srp-715-btc-bg) | 715 | 23.0 | -0.290 | Monocrystalline |
| 7 | [SRP-710-BHC-BG](https://comparepv.com/panel/seraphim-srp-710-bhc-bg) | 710 | 22.9 | -0.258 | Monocrystalline |
| 8 | [SRP-710-BTC-BG](https://comparepv.com/panel/seraphim-srp-710-btc-bg) | 710 | 22.9 | -0.290 | Monocrystalline |
| 9 | [SRP-705-BHC-BG](https://comparepv.com/panel/seraphim-srp-705-bhc-bg) | 705 | 22.7 | -0.258 | Monocrystalline |
| 10 | [SRP-705-BTC-BG](https://comparepv.com/panel/seraphim-srp-705-btc-bg) | 705 | 22.7 | -0.290 | Monocrystalline |


## Summary

JA Solar, founded in 2005 and headquartered in China, is one of the largest solar module manufacturers in the world, with a production capacity exceeding 100 GW and a workforce of over 37,000 employees. Listed on the Shenzhen Stock Exchange, the company jointly topped Wood Mackenzie's Global Solar Module Manufacturer Ranking for H1 2025 alongside Trinasolar, cementing its status as an industry leader. Seraphim, established in 2011 and also based in China, operates at a considerably smaller scale with a production capacity of 13 GW and between 1,000 and 5,000 employees. Despite the size difference, both companies carry Tier 1 bankable status, and Seraphim has been steadily expanding its footprint in European markets, reporting approximately 12 GW in global shipments in 2024.

JA Solar's portfolio spans 524 panel models, with PERC technology accounting for over 52% of its lineup and a maximum efficiency of 24.4%. The breadth of its catalog makes it well suited to virtually every segment - from residential rooftop installs and small commercial C&I systems to large utility-scale ground-mount projects - and its strong supply chain reliability is a recurring advantage for installers managing diverse project pipelines. Seraphim's more focused 136-panel portfolio leans toward newer N-type TOPCon technology as its leading cell type (nearly 49% of the range), resulting in a higher average module efficiency of 21.97% compared to 20.87% for JA Solar, a higher average rated power of 550.8 Wp versus 441.7 Wp, and a larger bifacial share of 72.79% against 44.27%. Combined with a slightly better average temperature coefficient of -0.312%/°C versus -0.323%/°C and a longer average product warranty of 29.0 years against 27.9 years, Seraphim's modules offer a compelling value proposition for installations where per-module output and low degradation directly reduce balance-of-system costs.

For buyers prioritizing brand recognition, supply security, and a proven global track record across all project types, JA Solar is the lower-risk choice. Seraphim is the stronger option for buyers focused on deploying high-power TOPCon bifacial modules in utility-scale or larger C&I projects where the technology premium translates into measurable energy yield gains - provided that local service and warranty support in the target market has been verified in advance.

Written by claude-sonnet from the figures above.


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

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