Qcells — South Korea/US
Q.MAX 425W E Ultra
The Qcells Q.MAX 425W E Ultra is a 425W PERC solar panel with 20.8% efficiency. Backed by a 25-year warranty.
Premium Tier
425W
Wattage
20.8%
Efficiency
PERC
Cell Type
25 years
Warranty
Full Specifications
- Brand
- Qcells
- Model
- Q.MAX 425W E Ultra
- Series
- Q.MAX
- Wattage
- 425W
- Module Efficiency
- 20.8%
- Cell Type
- PERC
- Dimensions
- 66-80" x 39-41"
- Weight
- 48 lbs
- Warranty
- 25 years
- Est. Price Per Watt
- $2.85
- Est. 7kW System Cost
- $19,950
- Est. 10kW System Cost
- $28,500
- Temperature Coefficient
- -0.35%/°C
- Bifacial
- No
- Origin
- South Korea/US
- FEOC Status
- check
Other Qcells Panels
| Model | Wattage | Efficiency | Cell | $/W |
|---|---|---|---|---|
| Q.TRON 475W E Pro | 475W | 22.7% | PERC | $3.36 |
| Q.PEAK 475W E Pro | 475W | 22.7% | PERC | $3.36 |
| Q.PLUS 475W E Pro | 475W | 22.7% | PERC | $3.36 |
| Q.PEAK DUO 475W E Pro | 475W | 22.7% | PERC | $3.36 |
| Q.MAX 475W E Pro | 475W | 22.7% | PERC | $3.36 |
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 425W Qcells Q.MAX 425W E Ultra cost?
The Qcells Q.MAX 425W E Ultra costs approximately $1211 per panel ($$2.85/W). A typical 7kW system using this panel would cost around $19,950 before incentives. After the 30% federal tax credit, your net cost drops to $13,965.
Is the Qcells Q.MAX 425W E Ultra a good solar panel?
The Qcells Q.MAX 425W E Ultra has 20.8% efficiency and a 25 years warranty, placing it in the premium tier. This is a solid mid-range panel suitable for most residential installations.
How many Qcells Q.MAX 425W E Ultra 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.