JA Solar vs DAH - Solar Panel Manufacturer Comparison
JA Solar
China · est. 2005DAH
China · est. 2009
Panel models
524
vs
356
Max power
740 W
vs
725 W
Max efficiency
24.40%
vs
23.34%
Bifacial share
44%
vs
89%
At a glance
JA Solar has the broader catalog (524 vs 356 models). JA Solar leads on peak efficiency at 24.40%. DAH leans bifacial (89% of lineup).
JA Solar
Website
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...
Headquarters
Beijing, China
Founded
2005
Employees
37,289
Production Capacity
100+ GW/year
Tier 1 Bankable
Yes
Stock
DAH
Website
Headquarters
Hefei, China
Founded
2009
Employees
-
Production Capacity
-
Tier 1 Bankable
Yes
Stock
-
Side-by-Side Specs
winner + margin shown| Metric |
JA Solar
|
DAH
|
|---|---|---|
| Catalog & Power | ||
| Panel Models | 524 +168 | 356 |
| Max Power | 740 W +15 W | 725 W |
| Avg Power | 442 W | 522 W +80 W |
| Efficiency | ||
| Max Efficiency | 24.40% +1.06 pp | 23.34% |
| Avg Efficiency | 20.87% | 22.13% +1.27 pp |
| Reliability & Warranty | ||
| Avg Temp Coefficient | -0.323%/°C | -0.298%/°C +0.025 |
| Bifacial Share | 232 (44%) | 316 (89%) +44 pp |
| Avg Warranty | 27.9 yrs | 29.5 yrs +1.7 yr |
Top Panels Side-by-Side
Top 10 highest-power models from each brandJA Solar
| # | Model | Power | Eff. | T.coeff | Tech |
|---|---|---|---|---|---|
| 1 | JAM66D46-740/LB Bi | 740W | 23.8% | -0.290%/°C | Monocrystalline |
| 2 | JAM66D46-735/LB Bi | 735W | 23.7% | -0.290%/°C | Monocrystalline |
| 3 | JAM66D46-730/LB Bi | 730W | 23.5% | -0.290%/°C | Monocrystalline |
| 4 | JAM66D46-725/LB Bi | 725W | 23.3% | -0.290%/°C | Monocrystalline |
| 5 | JAM66D46-720/LB Bi | 720W | 23.2% | -0.290%/°C | Monocrystalline |
| 6 | JAM66D46-715/LB Bi | 715W | 23.0% | -0.290%/°C | Monocrystalline |
| 7 | JAM66D46-710/LB Bi | 710W | 22.9% | -0.290%/°C | Monocrystalline |
| 8 | JAM66D46-705/LB Bi | 705W | 22.7% | -0.290%/°C | Monocrystalline |
| 9 | JAM66D46-700/LB Bi | 700W | 22.5% | -0.290%/°C | Monocrystalline |
| 10 | JAM66D46-695/LB Bi | 695W | 22.4% | -0.290%/°C | Monocrystalline |
DAH
| # | Model | Power | Eff. | T.coeff | Tech |
|---|---|---|---|---|---|
| 1 | DHN-66Y18/DG-725 Bi | 725W | 23.3% | -0.290%/°C | Monocrystalline |
| 2 | DHN-66Y18/DG-720 Bi | 720W | 23.2% | -0.290%/°C | Monocrystalline |
| 3 | DHN-66Y18/DG-715 Bi | 715W | 23.0% | -0.290%/°C | Monocrystalline |
| 4 | DAS-DH132NC-715 Bi | 715W | 23.0% | -0.280%/°C | Monocrystalline |
| 5 | DAS-DH132NC-710 Bi | 710W | 22.9% | -0.280%/°C | Monocrystalline |
| 6 | DHN-66Y18/DG-710 Bi | 710W | 22.9% | -0.290%/°C | Monocrystalline |
| 7 | DAS-DH132NC-705 Bi | 705W | 22.7% | -0.280%/°C | Monocrystalline |
| 8 | DHN-66Y18/DG-705 Bi | 705W | 22.7% | -0.290%/°C | Monocrystalline |
| 9 | DHN-66Y18/DG-700 Bi | 700W | 22.5% | -0.290%/°C | Monocrystalline |
| 10 | DAS-DH132NC-700 Bi | 700W | 22.5% | -0.280%/°C | Monocrystalline |
Top 10 panels average
Efficiency
23.10%
Temp coeff
-0.290%/°C
Top 10 panels average
Efficiency
22.87%
Temp coeff
-0.286%/°C
Efficiency Distribution
Share of each brand's lineup by efficiency tier
JA Solar skews to higher efficiency: 13% of lineup is 23%+
Power Distribution
Share of each brand's lineup by rated power range
DAH offers more 600W+ panels (23% of lineup)
JA Solar Cell Technology
Mix of cell technologies across the portfolio
Dominant cell tech: PERC (52%)
DAH Cell Technology
Mix of cell technologies across the portfolio
Dominant cell tech: TOPCon (81%)
Disclaimer: This comparison is based on our database and may not reflect complete product lineups. Help the community by suggesting missing panels.