Aptos Solar DNA-108-MF10 415W vs Aptos Solar DNA-144-MF26 440W
The Aptos Solar DNA-108-MF10 415W wins this comparison by a clear margin. It leads in efficiency (21.25% vs 20.21%) and matches or exceeds on warranty (30 vs 25 years). For most residential installations, the Aptos Solar DNA-108-MF10 415W is the stronger choice.
Key Differences
- • Aptos Solar DNA-108-MF10 415W is rated at 415W while Aptos Solar DNA-144-MF26 440W is rated at 440W, a 25W difference.
- • Aptos Solar DNA-108-MF10 415W achieves 21.25% efficiency vs 20.21% for the other, a 1.0 percentage point gap.
- • Aptos Solar DNA-108-MF10 415W comes with a 30-year product warranty vs 25 years for the other.
- • Aptos Solar DNA-108-MF10 415W has a superior temperature coefficient of -0.32%/°C vs -0.35%/°C, retaining more power in hot climates.
Specifications Breakdown
Module Efficiency
The Aptos Solar DNA-108-MF10 415W achieves 21.25% module efficiency compared to Aptos Solar DNA-144-MF26 440W's 20.21%, meaning Aptos Solar DNA-108-MF10 415W converts 1.0 percentage points more sunlight into electricity per square meter. In practical terms, the Aptos Solar DNA-108-MF10 415W produces 212.5 watts per square meter of panel area while the Aptos Solar DNA-144-MF26 440W produces 202.1 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 Aptos Solar DNA-144-MF26 440W delivers 440W per panel versus 415W for the Aptos Solar DNA-108-MF10 415W, a 25W difference per module. To build an 8 kW residential system, you would need 20 Aptos Solar DNA-108-MF10 415W panels or 19 Aptos Solar DNA-144-MF26 440W 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
The Aptos Solar DNA-108-MF10 415W has a temperature coefficient of -0.32%/°C versus -0.35%/°C for the Aptos Solar DNA-144-MF26 440W. On a hot summer day when cell temperature reaches 65°C (40°C above the 25°C STC baseline), the Aptos Solar DNA-108-MF10 415W retains 93.6% of its rated power while the other retains 93.0%. While the numerical gap is modest, it still accumulates over decades of summer production, especially in southern latitudes with prolonged peak heat hours.
Warranty Coverage
The Aptos Solar DNA-108-MF10 415W is backed by a 30-year product warranty and 30-year performance guarantee, while the Aptos Solar DNA-144-MF26 440W offers 25-year product and 30-year performance coverage. The Aptos Solar DNA-108-MF10 415W provides 5 additional years of defect protection, covering manufacturing issues, material failures, and premature performance loss. Based on their published degradation rates (1% first year then 0.54%/year for Aptos Solar DNA-108-MF10 415W; 1% first year then 0.54%/year for Aptos Solar DNA-144-MF26 440W), after 25 years the Aptos Solar DNA-108-MF10 415W should retain approximately 86.0% of original output versus 86.0% for the Aptos Solar DNA-144-MF26 440W. The end-of-life output levels are closely matched.
Physical Dimensions & Weight
The Aptos Solar DNA-108-MF10 415W measures 1722×1134×35mm and weighs 21.5 kg, while the Aptos Solar DNA-144-MF26 440W measures 2095×1039×40mm at 24.1 kg. 1.95 m² of panel area for the Aptos Solar DNA-108-MF10 415W versus 2.18 m² for the Aptos Solar DNA-144-MF26 440W. The Aptos Solar DNA-108-MF10 415W is 2.6 kg lighter per panel, which reduces structural load requirements on the roof and makes handling easier during installation. For a 20-panel system, that is a total weight difference of 52 kg. The more compact Aptos Solar DNA-108-MF10 415W may be easier to fit on irregularly shaped or space-limited rooftops.
Specification Comparison
| Specification | Aptos Solar DNA-108-MF10 415W | Aptos Solar DNA-144-MF26 440W |
|---|---|---|
| Power | 415W | 440W |
| Efficiency | 21.25% | 20.21% |
| Power Density | 19.7 W/sq ft | 18.8 W/sq ft |
| Cell Type | PERC Mono | PERC Mono |
| Bifacial | No | No |
| Weight | 21.5 kg | 24.1 kg |
| Temp Coefficient | -0.32%/°C | -0.35%/°C |
| Snow Load | 5400 Pa | 5400 Pa |
| Wind Load | 4000 Pa | 4000 Pa |
| Product Warranty | 30 years | 25 years |
| Performance Warranty | 30 years | 30 years |
| Degradation (Year 1) | 1% | 1% |
| Annual Degradation | 0.54% | 0.54% |
| Country | Vietnam | Vietnam |
5-Dimension Head-to-Head Analysis
1. Efficiency & Power Density
Winner: Aptos Solar DNA-108-MF10 415WThe Aptos Solar DNA-108-MF10 415W achieves 21.25% efficiency versus 20.21% — a 1.0 percentage point advantage. On a typical 30-panel residential roof, this translates to approximately 0.8 kW more total system capacity, or 4 kWh more annual production in an average US location.
2. Hot Climate Performance
Winner: Aptos Solar DNA-108-MF10 415WThe Aptos Solar DNA-108-MF10 415W has a better temperature coefficient of -0.32%/°C versus -0.35%/°C. On a 45°C summer day (20°C above STC), the winner retains 93.6% of rated power versus 93.0%. The difference is modest but accumulates over 25 years of summer production.
3. Durability & Warranty
Winner: Aptos Solar DNA-108-MF10 415WAptos Solar DNA-108-MF10 415W leads with a 30-year product warranty versus 25 years. After 25 years, expect 86.0% vs 86.0% of original output for Aptos Solar DNA-108-MF10 415W and Aptos Solar DNA-144-MF26 440W respectively.
4. Power Output
Winner: Aptos Solar DNA-144-MF26 440WThe Aptos Solar DNA-144-MF26 440W delivers 440W versus 415W per panel — 25W 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 PERC Mono cell technology. No technology advantage for either product.
Aptos Solar DNA-108-MF10 415W
Aptos Solar DNA-108-MF10 is a 415W residential panel using patented DNA PERC technology with 108 half-cut cells and 10 ultra-thin busbars for high efficiency in a compact all-black design.
Pros
- + Compact 108-cell format ideal for residential rooftops
- + 30-year product and performance warranty
- + All-black aesthetic with high 21.25% efficiency
- + Lightweight at 21.5 kg for easy installation
Cons
- - PERC technology vs newer TOPCon alternatives
- - Lower wattage limits large system designs
- - No bifacial energy gain
Aptos Solar DNA-144-MF26 440W
Aptos Solar DNA-144-MF26 is a 440W all-black monofacial panel with 144 half-cut cells, designed for commercial and large residential systems.
Pros
- + 440W output in a full-size 144-cell format
- + All-black aesthetic design
- + 30-year performance warranty
- + Competitive pricing
Cons
- - Larger dimensions require more roof space
- - 20.21% efficiency is moderate
- - No bifacial capability
Choose Aptos Solar DNA-108-MF10 415W If...
- ✓ Your roof space is limited and you need maximum power per panel
- ✓ Long-term warranty protection is a top priority and you plan to stay in your home for 30+ years
- ✓ You live in a hot climate (Arizona, Texas, Florida) where heat performance matters
- ✓ Homeowners seeking a compact, aesthetically pleasing panel with strong warranty coverage for residential rooftop installations.
Choose Aptos Solar DNA-144-MF26 440W If...
- ✓ You want fewer panels to reach your target system size, reducing racking and labor costs
- ✓ Commercial installations and large residential systems needing high wattage with clean all-black aesthetics.
Our Recommendation
We recommend the Aptos Solar DNA-108-MF10 415W for most buyers in this comparison. It wins 3 of 5 key dimensions and offers a clear advantage in the metrics that matter most for a solar panel purchase. The Aptos Solar DNA-144-MF26 440W remains a good product, but the Aptos Solar DNA-108-MF10 415W delivers better overall value for the majority of installations.
Frequently Asked Questions
Which is better, Aptos Solar DNA-108-MF10 415W or Aptos Solar DNA-144-MF26 440W?
The Aptos Solar DNA-108-MF10 415W wins this comparison by a clear margin. It leads in efficiency (21.25% vs 20.21%) and matches or exceeds on warranty (30 vs 25 years). For most residential installations, the Aptos Solar DNA-108-MF10 415W is the stronger choice.
Which panel is more efficient, Aptos Solar DNA-108-MF10 415W or Aptos Solar DNA-144-MF26 440W?
The Aptos Solar DNA-108-MF10 415W at 21.25% module efficiency. Higher efficiency means more watts per square foot of roof space, which is critical for space-constrained installations. The difference of 1.0 percentage points translates to approximately 25W per panel under standard test conditions.
Which has a better warranty, Aptos Solar DNA-108-MF10 415W or Aptos Solar DNA-144-MF26 440W?
The Aptos Solar DNA-108-MF10 415W comes with a 30-year product warranty and 30-year performance guarantee. The Aptos Solar DNA-144-MF26 440W offers 25-year product and 30-year performance warranties. Aptos Solar DNA-108-MF10 415W provides 5 additional years of product coverage.
Which panel performs better in hot weather?
The Aptos Solar DNA-108-MF10 415W has a temperature coefficient of -0.32%/°C and the Aptos Solar DNA-144-MF26 440W is -0.35%/°C. Aptos Solar DNA-108-MF10 415W retains more power in heat — important in states like Arizona, Texas, and Florida. A lower (less negative) temperature coefficient is better.
How many Aptos Solar DNA-108-MF10 415W vs Aptos Solar DNA-144-MF26 440W panels do I need for an 8 kW system?
For an 8 kW system: you need 20 Aptos Solar DNA-108-MF10 415W panels (415W each) or 19 Aptos Solar DNA-144-MF26 440W panels (440W each). The Aptos Solar DNA-144-MF26 440W requires fewer panels, saving on racking hardware and installation labor.
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Last updated: February 2026