Q CELLS Q.TRON 425W vs Hanwha Q.TRON G11S 410W
The Q CELLS Q.TRON 425W wins this comparison by a narrow margin. It leads in efficiency (21.8% vs 21.3%) and matches or exceeds on warranty (25 vs 25 years). For most residential installations, the Q CELLS Q.TRON 425W is the stronger choice.
Key Differences
- • Q CELLS Q.TRON 425W is rated at 425W while Hanwha Q.TRON G11S 410W is rated at 410W, a 15W difference.
- • Q CELLS Q.TRON 425W achieves 21.8% efficiency vs 21.3% for the other, a 0.5 percentage point gap.
- • Both carry matching 25-year product warranties.
Specifications Breakdown
Module Efficiency
The Q CELLS Q.TRON 425W achieves 21.8% module efficiency compared to Hanwha Q.TRON G11S 410W's 21.3%, meaning Q CELLS Q.TRON 425W converts 0.5 percentage points more sunlight into electricity per square meter. In practical terms, the Q CELLS Q.TRON 425W produces 217.6 watts per square meter of panel area while the Hanwha Q.TRON G11S 410W produces 210.0 W/m². For rooftop installations where space is limited, this efficiency gap determines how many kilowatts you can fit on your available roof area. Over a 25-year system life, even a small efficiency advantage compounds into meaningful additional energy production.
Power Output
The Q CELLS Q.TRON 425W delivers 425W per panel versus 410W for the Hanwha Q.TRON G11S 410W, a 15W difference per module. To build an 8 kW residential system, you would need 19 Q CELLS Q.TRON 425W panels or 20 Hanwha Q.TRON G11S 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 -0.29%/°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 94.2% of rated power. Neither panel has a thermal performance advantage, which makes this specification a non-factor in the comparison.
Warranty Coverage
The Q CELLS Q.TRON 425W is backed by a 25-year product warranty and 25-year performance guarantee, while the Hanwha Q.TRON G11S 410W offers 25-year product and 25-year performance coverage. Both offer identical product warranty duration. Based on their published degradation rates (1% first year then 0.4%/year for Q CELLS Q.TRON 425W; 1% first year then 0.4%/year for Hanwha Q.TRON G11S 410W), after 25 years the Q CELLS Q.TRON 425W should retain approximately 89.4% of original output versus 89.4% for the Hanwha Q.TRON G11S 410W. The end-of-life output levels are closely matched.
Physical Dimensions & Weight
The Q CELLS Q.TRON 425W measures 1722×1134×30mm and weighs 21.5 kg, while the Hanwha Q.TRON G11S 410W measures 1722×1134×30mm at 20.8 kg. 1.95 m² of panel area for the Q CELLS Q.TRON 425W versus 1.95 m² for the Hanwha Q.TRON G11S 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 | Q CELLS Q.TRON 425W | Hanwha Q.TRON G11S 410W |
|---|---|---|
| Power | 425W | 410W |
| Efficiency | 21.8% | 21.3% |
| Power Density | 20.2 W/sq ft | 19.5 W/sq ft |
| Cell Type | TOPCon N-type | TOPCon N-type |
| Bifacial | No | No |
| Weight | 21.5 kg | 20.8 kg |
| Temp Coefficient | -0.29%/°C | -0.29%/°C |
| Snow Load | 5400 Pa | 5400 Pa |
| Wind Load | 3600 Pa | 2400 Pa |
| Product Warranty | 25 years | 25 years |
| Performance Warranty | 25 years | 25 years |
| Degradation (Year 1) | 1% | 1% |
| Annual Degradation | 0.4% | 0.4% |
| Country | South Korea | South Korea |
5-Dimension Head-to-Head Analysis
1. Efficiency & Power Density
Winner: Q CELLS Q.TRON 425WThe Q CELLS Q.TRON 425W achieves 21.8% efficiency versus 21.3% — a 0.5 percentage point advantage. On a typical 30-panel residential roof, this translates to approximately 0.5 kW more total system capacity, or 3 kWh more annual production in an average US location.
2. Hot Climate Performance
Winner: TieBoth panels share a temperature coefficient of -0.29%/°C — identical heat tolerance.
3. Durability & Warranty
Winner: TieBoth panels offer identical 25-year product warranties and 0.4% annual degradation. Neither has a durability advantage.
4. Power Output
Winner: Q CELLS Q.TRON 425WThe Q CELLS Q.TRON 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 TOPCon N-type cell technology. No technology advantage for either product.
Q CELLS Q.TRON 425W
Q CELLS Q.TRON delivers 425W using N-type TOPCon technology with the brand's signature 25-year comprehensive warranty.
Pros
- + 25-year product warranty
- + N-type efficiency
- + Strong brand reputation
- + Good size-to-power ratio
Cons
- - Premium pricing
- - Not the highest efficiency
- - Limited color options
Hanwha Q.TRON G11S 410W
The Hanwha Q.TRON G11S delivers 410W N-type TOPCon performance in a compact residential format with a strong 25-year warranty.
Pros
- + 25-year product warranty
- + N-type TOPCon cells
- + Compact size
- + Korean quality
Cons
- - Moderate wattage
- - Premium pricing
- - Limited color options
Choose Q CELLS Q.TRON 425W If...
- ✓ Your roof space is limited and you need maximum power per panel
- ✓ You want fewer panels to reach your target system size, reducing racking and labor costs
- ✓ You prefer newer cell technology with a longer performance improvement runway
- ✓ Homeowners valuing Q CELLS' reputation and warranty coverage.
Choose Hanwha Q.TRON G11S 410W If...
- ✓ You prefer newer cell technology with a longer performance improvement runway
- ✓ Residential installations valuing Korean quality with strong warranty.
Our Recommendation
Both the Q CELLS Q.TRON 425W and Hanwha Q.TRON G11S 410W are excellent solar panel options, and the margin between them is narrow. The Q CELLS Q.TRON 425W wins 2 of 5 comparison dimensions by a slim margin. Your decision may come down to local pricing, installer availability, and which specific performance metrics matter most for your project. Either product is a solid investment.
Frequently Asked Questions
Which is better, Q CELLS Q.TRON 425W or Hanwha Q.TRON G11S 410W?
The Q CELLS Q.TRON 425W wins this comparison by a narrow margin. It leads in efficiency (21.8% vs 21.3%) and matches or exceeds on warranty (25 vs 25 years). For most residential installations, the Q CELLS Q.TRON 425W is the stronger choice.
Which panel is more efficient, Q CELLS Q.TRON 425W or Hanwha Q.TRON G11S 410W?
The Q CELLS Q.TRON 425W at 21.8% module efficiency. Higher efficiency means more watts per square foot of roof space, which is critical for space-constrained installations. The difference of 0.5 percentage points translates to approximately 15W per panel under standard test conditions.
Which has a better warranty, Q CELLS Q.TRON 425W or Hanwha Q.TRON G11S 410W?
The Q CELLS Q.TRON 425W comes with a 25-year product warranty and 25-year performance guarantee. The Hanwha Q.TRON G11S 410W offers 25-year product and 25-year performance warranties. Both offer identical warranty terms.
Which panel performs better in hot weather?
The Q CELLS Q.TRON 425W has a temperature coefficient of -0.29%/°C and the Hanwha Q.TRON G11S 410W is -0.29%/°C. Both handle heat equally. A lower (less negative) temperature coefficient is better.
How many Q CELLS Q.TRON 425W vs Hanwha Q.TRON G11S 410W panels do I need for an 8 kW system?
For an 8 kW system: you need 19 Q CELLS Q.TRON 425W panels (425W each) or 20 Hanwha Q.TRON G11S 410W panels (410W each). The Q CELLS Q.TRON 425W requires fewer panels, saving on racking hardware and installation labor.
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Last updated: February 2026