Maxeon Maxeon 6 425W vs Maxeon Maxeon 3 410W
This is a close comparison between similar models in the same product line.
The Maxeon Maxeon 6 425W wins this comparison by a decisive margin. It delivers more power (425W vs 410W). For most residential installations, the Maxeon Maxeon 6 425W is the stronger choice.
Key Differences
- • Maxeon Maxeon 6 425W is rated at 425W while Maxeon Maxeon 3 410W is rated at 410W, a 15W difference.
- • Both achieve identical 22.2% module efficiency.
- • Maxeon Maxeon 6 425W comes with a 40-year product warranty vs 25 years for the other.
Specifications Breakdown
Module Efficiency
Both the Maxeon Maxeon 6 425W and Maxeon Maxeon 3 410W share identical 22.2% module efficiency, producing comparable power per unit area. The Maxeon Maxeon 6 425W generates 220.0 W/m² while the Maxeon Maxeon 3 410W generates 222.7 W/m² based on their respective panel dimensions. With matched efficiency, neither panel holds a density advantage for space-constrained rooftop installations, so other factors like warranty coverage and temperature performance become the deciding metrics.
Power Output
The Maxeon Maxeon 6 425W delivers 425W per panel versus 410W for the Maxeon Maxeon 3 410W, a 15W difference per module. To build an 8 kW residential system, you would need 19 Maxeon Maxeon 6 425W panels or 20 Maxeon Maxeon 3 410W panels. Choosing the higher-wattage option saves 1 panel, reducing total racking hardware, wiring, and installation labor costs. Higher wattage per panel is particularly valuable for commercial-scale installations where panel count directly impacts balance-of-system costs.
Temperature Coefficient
Both panels share an identical temperature coefficient of -0.27%/°C, meaning they lose power at the same rate as cell temperature rises above the 25°C standard test baseline. At 65°C cell temperature, both retain 94.6% of rated power. Neither panel has a thermal performance advantage, which makes this specification a non-factor in the comparison.
Warranty Coverage
The Maxeon Maxeon 6 425W is backed by a 40-year product warranty and 40-year performance guarantee, while the Maxeon Maxeon 3 410W offers 25-year product and 25-year performance coverage. The Maxeon Maxeon 6 425W provides 15 additional years of defect protection, covering manufacturing issues, material failures, and premature performance loss. Based on their published degradation rates (0.25% first year then 0.25%/year for Maxeon Maxeon 6 425W; 0.25% first year then 0.25%/year for Maxeon Maxeon 3 410W), after 25 years the Maxeon Maxeon 6 425W should retain approximately 93.8% of original output versus 93.8% for the Maxeon Maxeon 3 410W. The end-of-life output levels are closely matched.
Physical Dimensions & Weight
The Maxeon Maxeon 6 425W measures 1872×1032×30mm and weighs 20.5 kg, while the Maxeon Maxeon 3 410W measures 1812×1016×30mm at 19 kg. 1.93 m² of panel area for the Maxeon Maxeon 6 425W versus 1.84 m² for the Maxeon Maxeon 3 410W. Their weights are closely matched, so neither panel imposes a significantly different structural load on the mounting system. Similar footprints mean both panels fit comparably on standard residential rooftop configurations.
Specification Comparison
| Specification | Maxeon Maxeon 6 425W | Maxeon Maxeon 3 410W |
|---|---|---|
| Power | 425W | 410W |
| Efficiency | 22.2% | 22.2% |
| Power Density | 20.4 W/sq ft | 20.7 W/sq ft |
| Cell Type | IBC (Interdigitated Back Contact) | IBC (Interdigitated Back Contact) |
| Bifacial | Yes | Yes |
| Weight | 20.5 kg | 19 kg |
| Temp Coefficient | -0.27%/°C | -0.27%/°C |
| Snow Load | 5400 Pa | 5400 Pa |
| Wind Load | 3600 Pa | 3600 Pa |
| Product Warranty | 40 years | 25 years |
| Performance Warranty | 40 years | 25 years |
| Degradation (Year 1) | 0.25% | 0.25% |
| Annual Degradation | 0.25% | 0.25% |
| Country | Malaysia | Mexico |
5-Dimension Head-to-Head Analysis
1. Efficiency & Power Density
Winner: TieBoth panels achieve 22.2% module efficiency, producing identical power per square meter. Neither has an advantage in space-constrained installations.
2. Hot Climate Performance
Winner: TieBoth panels share a temperature coefficient of -0.27%/°C — identical heat tolerance.
3. Durability & Warranty
Winner: Maxeon Maxeon 6 425WMaxeon Maxeon 6 425W leads with a 40-year product warranty versus 25 years. After 25 years, expect 93.8% vs 93.8% of original output for Maxeon Maxeon 6 425W and Maxeon Maxeon 3 410W respectively.
4. Power Output
Winner: Maxeon Maxeon 6 425WThe Maxeon Maxeon 6 425W delivers 425W versus 410W per panel — 15W more. For an 8 kW system, you need 19 panels with the higher-wattage option versus 20 panels, saving 1 panels and the associated racking and labor costs.
5. Cell Technology
Winner: TieBoth panels use IBC (Interdigitated Back Contact) cell technology. No technology advantage for either product.
Maxeon Maxeon 6 425W
The Maxeon 6 delivers 425W with 22.2% efficiency and the same industry-leading 40-year warranty as the Maxeon 7 series.
Pros
- + 40-year complete warranty
- + 22.2% IBC efficiency
- + Excellent aesthetics
- + Ultra-low degradation
Cons
- - Very high cost per watt
- - Limited installer network
- - Fewer wattage options
Maxeon Maxeon 3 410W
The Maxeon 3 (formerly SunPower) delivers 410W with IBC technology and a proven 25-year warranty track record. Note: this is a discontinued/legacy model being phased out in favor of newer Maxeon series.
Pros
- + Proven IBC technology
- + 25-year comprehensive warranty
- + Excellent real-world performance
- + Lightweight design
Cons
- - Discontinued/legacy model
- - Higher cost than conventional panels
- - Limited future support and availability
Choose Maxeon Maxeon 6 425W If...
- ✓ You want fewer panels to reach your target system size, reducing racking and labor costs
- ✓ Long-term warranty protection is a top priority and you plan to stay in your home for 40+ years
- ✓ Homeowners seeking a premium panel with the longest warranty available.
Choose Maxeon Maxeon 3 410W If...
- ✓ Those wanting a proven premium panel with established track record (while supplies last).
Our Recommendation
The Maxeon Maxeon 6 425W is the decisive winner in this solar panel comparison, outperforming the Maxeon Maxeon 3 410W in 2 of 5 dimensions. Unless you have a specific requirement that the Maxeon Maxeon 3 410W uniquely addresses, the Maxeon Maxeon 6 425W is the stronger choice for virtually every installation scenario.
Frequently Asked Questions
Which is better, Maxeon Maxeon 6 425W or Maxeon Maxeon 3 410W?
The Maxeon Maxeon 6 425W wins this comparison by a decisive margin. It delivers more power (425W vs 410W). For most residential installations, the Maxeon Maxeon 6 425W is the stronger choice.
Which panel is more efficient, Maxeon Maxeon 6 425W or Maxeon Maxeon 3 410W?
The both panels share 22.2% module efficiency. Higher efficiency means more watts per square foot of roof space, which is critical for space-constrained installations. The difference of 0.0 percentage points translates to approximately 15W per panel under standard test conditions.
Which has a better warranty, Maxeon Maxeon 6 425W or Maxeon Maxeon 3 410W?
The Maxeon Maxeon 6 425W comes with a 40-year product warranty and 40-year performance guarantee. The Maxeon Maxeon 3 410W offers 25-year product and 25-year performance warranties. Maxeon Maxeon 6 425W provides 15 additional years of product coverage.
Which panel performs better in hot weather?
The Maxeon Maxeon 6 425W has a temperature coefficient of -0.27%/°C and the Maxeon Maxeon 3 410W is -0.27%/°C. Both handle heat equally. A lower (less negative) temperature coefficient is better.
How many Maxeon Maxeon 6 425W vs Maxeon Maxeon 3 410W panels do I need for an 8 kW system?
For an 8 kW system: you need 19 Maxeon Maxeon 6 425W panels (425W each) or 20 Maxeon Maxeon 3 410W panels (410W each). The Maxeon Maxeon 6 425W requires fewer panels, saving on racking hardware and installation labor.
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Last updated: February 2026