JA Solar — China
JAM 485W D
The JA Solar JAM 485W D is a 485W N-Type TOPCon solar panel with 22.8% efficiency. Backed by a 30-year warranty.
Standard TierFEOC: RestrictedBifacial
485W
Wattage
22.8%
Efficiency
N-Type TOPCon
Cell Type
30 years
Warranty
Full Specifications
- Brand
- JA Solar
- Model
- JAM 485W D
- Series
- JAM
- Wattage
- 485W
- Module Efficiency
- 22.8%
- Cell Type
- N-Type TOPCon
- Dimensions
- 78-82" x 39-41"
- Weight
- 56 lbs
- Warranty
- 30 years
- Est. Price Per Watt
- $2.69
- Est. 7kW System Cost
- $18,830
- Est. 10kW System Cost
- $26,900
- Temperature Coefficient
- -0.25%/°C
- Bifacial
- Yes
- Origin
- China
- FEOC Status
- fail
Other JA Solar Panels
| Model | Wattage | Efficiency | Cell | $/W |
|---|---|---|---|---|
| DeepBlue 485W D | 485W | 22.8% | N-Type TOPCon | $2.69 |
| JAM72 485W D | 485W | 22.8% | N-Type TOPCon | $2.69 |
| JAM54 485W D | 485W | 22.8% | N-Type TOPCon | $2.69 |
| DeepBlue 3.0 485W D | 485W | 22.8% | N-Type TOPCon | $2.69 |
| JAM 480W C All-Black | 480W | 22.6% | PERC | $2.64 |
Similar Wattage Panels (Competitors)
| Panel | Wattage | Efficiency | $/W |
|---|---|---|---|
| Maxeon Maxeon 3 455W E Pro | 455W | 23.5% | $4.72 |
| Maxeon Maxeon 6 455W E Pro | 455W | 23.5% | $4.72 |
| Maxeon Maxeon 7 455W E Pro | 455W | 23.5% | $4.72 |
| Maxeon Maxeon Air 455W E Pro | 455W | 23.5% | $4.72 |
Frequently Asked Questions
How much does a 485W JA Solar JAM 485W D cost?
The JA Solar JAM 485W D costs approximately $1305 per panel ($$2.69/W). A typical 7kW system using this panel would cost around $18,830 before incentives.
⚠ The 30% Federal Solar Tax Credit (48E/ITC) expired July 4, 2026.
Selecting 30% ITC assumes you began construction before this deadline. Most new purchases no longer qualify.Learn about your options after the deadline →
Is the JA Solar JAM 485W D a good solar panel?
The JA Solar JAM 485W D has 22.8% efficiency and a 30 years warranty, placing it in the standard tier. This is above-average efficiency, making it a strong choice.
How many JA Solar JAM 485W D panels do I need?
For a typical 7kW residential system, you'd need approximately 15 panels. For a 10kW system, plan for about 21 panels. The exact number depends on your roof space, energy usage, and local sun hours.