Aptos Solar — US
DNA 420W E Max
The Aptos Solar DNA 420W E Max is a 420W PERC solar panel with 20.7% efficiency. Made in US. Backed by a 25-year warranty.
Standard Tier
🇺🇸 Domestic Content Bonus Eligible
420W
Wattage
20.7%
Efficiency
PERC
Cell Type
25 years
Warranty
Full Specifications
- Brand
- Aptos Solar
- Model
- DNA 420W E Max
- Series
- DNA
- Wattage
- 420W
- Module Efficiency
- 20.7%
- Cell Type
- PERC
- Dimensions
- 66-80" x 39-41"
- Weight
- 48 lbs
- Warranty
- 25 years
- Est. Price Per Watt
- $2.72
- Est. 7kW System Cost
- $19,040
- Est. 10kW System Cost
- $27,200
- Temperature Coefficient
- -0.35%/°C
- Bifacial
- No
- Origin
- US
- FEOC Status
- pass
Other Aptos Solar Panels
| Model | Wattage | Efficiency | Cell | $/W |
|---|---|---|---|---|
| DNA 450W D | 450W | 21.7% | N-Type TOPCon | $2.97 |
| APTOS 450W D | 450W | 21.7% | N-Type TOPCon | $2.97 |
| DNA Pro 450W D | 450W | 21.7% | N-Type TOPCon | $2.97 |
| DNA 445W C All-Black | 445W | 21.5% | PERC | $2.92 |
| APTOS 445W C All-Black | 445W | 21.5% | PERC | $2.92 |
Similar Wattage Panels (Competitors)
| Panel | Wattage | Efficiency | $/W |
|---|---|---|---|
| Maxeon Maxeon 3 450W D Plus | 450W | 23.3% | $4.61 |
| Maxeon Maxeon 6 450W D Plus | 450W | 23.3% | $4.61 |
| Maxeon Maxeon 7 450W D Plus | 450W | 23.3% | $4.61 |
| Maxeon Maxeon Air 450W D Plus | 450W | 23.3% | $4.61 |
Frequently Asked Questions
How much does a 420W Aptos Solar DNA 420W E Max cost?
The Aptos Solar DNA 420W E Max costs approximately $1142 per panel ($$2.72/W). A typical 7kW system using this panel would cost around $19,040 before incentives. After the 30% federal tax credit, your net cost drops to $13,328.
Is the Aptos Solar DNA 420W E Max a good solar panel?
The Aptos Solar DNA 420W E Max has 20.7% efficiency and a 25 years warranty, placing it in the standard tier. This is a solid mid-range panel suitable for most residential installations. It also qualifies for the domestic content bonus under the Inflation Reduction Act.
How many Aptos Solar DNA 420W E Max panels do I need?
For a typical 7kW residential system, you'd need approximately 17 panels. For a 10kW system, plan for about 24 panels. The exact number depends on your roof space, energy usage, and local sun hours.