Mission Solar MSE415 vs Aptos Solar DNA-120-MF26 370W
The Mission Solar MSE415 wins this comparison by a clear margin. It leads in efficiency (21% vs 20.28%) and matches or exceeds on warranty (25 vs 25 years). For most residential installations, the Mission Solar MSE415 is the stronger choice.
Key Differences
- • Mission Solar MSE415 is rated at 415W while Aptos Solar DNA-120-MF26 370W is rated at 370W, a 45W difference.
- • Mission Solar MSE415 achieves 21% efficiency vs 20.28% for the other, a 0.7 percentage point gap.
- • Both carry matching 25-year product warranties.
- • Mission Solar MSE415 has a superior temperature coefficient of -0.34%/°C vs -0.36%/°C, retaining more power in hot climates.
Specifications Breakdown
Module Efficiency
The Mission Solar MSE415 achieves 21% module efficiency compared to Aptos Solar DNA-120-MF26 370W's 20.28%, meaning Mission Solar MSE415 converts 0.7 percentage points more sunlight into electricity per square meter. In practical terms, the Mission Solar MSE415 produces 212.5 watts per square meter of panel area while the Aptos Solar DNA-120-MF26 370W produces 200.4 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 Mission Solar MSE415 delivers 415W per panel versus 370W for the Aptos Solar DNA-120-MF26 370W, a 45W difference per module. To build an 8 kW residential system, you would need 20 Mission Solar MSE415 panels or 22 Aptos Solar DNA-120-MF26 370W panels. Choosing the higher-wattage option saves 2 panels, 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 Mission Solar MSE415 has a temperature coefficient of -0.34%/°C versus -0.36%/°C for the Aptos Solar DNA-120-MF26 370W. On a hot summer day when cell temperature reaches 65°C (40°C above the 25°C STC baseline), the Mission Solar MSE415 retains 93.2% of its rated power while the other retains 92.8%. 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 Mission Solar MSE415 is backed by a 25-year product warranty and 25-year performance guarantee, while the Aptos Solar DNA-120-MF26 370W offers 25-year product and 30-year performance coverage. Both offer identical product warranty duration. Based on their published degradation rates (1% first year then 0.4%/year for Mission Solar MSE415; 1% first year then 0.54%/year for Aptos Solar DNA-120-MF26 370W), after 25 years the Mission Solar MSE415 should retain approximately 89.4% of original output versus 86.0% for the Aptos Solar DNA-120-MF26 370W. This 3.4 percentage point gap in end-of-life output meaningfully impacts lifetime energy economics.
Physical Dimensions & Weight
The Mission Solar MSE415 measures 1722×1134×30mm and weighs 21.5 kg, while the Aptos Solar DNA-120-MF26 370W measures 1762×1048×35mm at 20.5 kg. 1.95 m² of panel area for the Mission Solar MSE415 versus 1.85 m² for the Aptos Solar DNA-120-MF26 370W. Their weights are closely matched, so neither panel imposes a significantly different structural load on the mounting system. The more compact Aptos Solar DNA-120-MF26 370W may be easier to fit on irregularly shaped or space-limited rooftops.
Specification Comparison
| Specification | Mission Solar MSE415 | Aptos Solar DNA-120-MF26 370W |
|---|---|---|
| Power | 415W | 370W |
| Efficiency | 21% | 20.28% |
| Power Density | 19.7 W/sq ft | 18.6 W/sq ft |
| Cell Type | PERC Mono | PERC Mono |
| Bifacial | No | No |
| Weight | 21.5 kg | 20.5 kg |
| Temp Coefficient | -0.34%/°C | -0.36%/°C |
| Snow Load | 5400 Pa | 5400 Pa |
| Wind Load | 2400 Pa | 4000 Pa |
| Product Warranty | 25 years | 25 years |
| Performance Warranty | 25 years | 30 years |
| Degradation (Year 1) | 1% | 1% |
| Annual Degradation | 0.4% | 0.54% |
| Country | United States | Vietnam |
5-Dimension Head-to-Head Analysis
1. Efficiency & Power Density
Winner: Mission Solar MSE415The Mission Solar MSE415 achieves 21% efficiency versus 20.28% — a 0.7 percentage point advantage. On a typical 30-panel residential roof, this translates to approximately 1.4 kW more total system capacity, or 7 kWh more annual production in an average US location.
2. Hot Climate Performance
Winner: Mission Solar MSE415The Mission Solar MSE415 has a better temperature coefficient of -0.34%/°C versus -0.36%/°C. On a 45°C summer day (20°C above STC), the winner retains 93.2% of rated power versus 92.8%. The difference is modest but accumulates over 25 years of summer production.
3. Durability & Warranty
Winner: Mission Solar MSE415Mission Solar MSE415 degrades more slowly at 0.4% per year versus 0.54%. After 25 years, expect 89.4% vs 86.0% of original output for Mission Solar MSE415 and Aptos Solar DNA-120-MF26 370W respectively.
4. Power Output
Winner: Mission Solar MSE415The Mission Solar MSE415 delivers 415W versus 370W per panel — 45W more. For an 8 kW system, you need 20 panels with the higher-wattage option versus 22 panels, saving 2 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.
Mission Solar MSE415
Mission Solar MSE415 is a US-manufactured PERC panel delivering 415W, designed and assembled in San Antonio, Texas.
Pros
- + Made in USA (San Antonio, TX)
- + 25-year product warranty
- + Supports US solar jobs
- + Good PERC performance
Cons
- - Lower efficiency vs imports
- - Higher cost
- - Limited model selection
Aptos Solar DNA-120-MF26 370W
Aptos Solar DNA-120-MF26 is a 370W all-black residential panel with DNA technology, designed for aesthetic rooftop installations with strong value pricing.
Pros
- + All-black design for aesthetic residential rooftops
- + Lightweight at 20.5 kg
- + Budget-friendly price per watt
- + 30-year performance warranty
Cons
- - Lower 370W output requires more panels
- - 20.28% efficiency below premium tier
- - No bifacial option in this model
Choose Mission Solar MSE415 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 live in a hot climate (Arizona, Texas, Florida) where heat performance matters
- ✓ You want maximum output retention over the system's 25-30 year lifespan
- ✓ Patriotic homeowners wanting Texas-made solar panels with a strong warranty.
Choose Aptos Solar DNA-120-MF26 370W If...
- ✓ Budget-conscious homeowners who want an attractive all-black panel with reliable performance and long warranty coverage.
Our Recommendation
We recommend the Mission Solar MSE415 for most buyers in this comparison. It wins 4 of 5 key dimensions and offers a clear advantage in the metrics that matter most for a solar panel purchase. The Aptos Solar DNA-120-MF26 370W remains a good product, but the Mission Solar MSE415 delivers better overall value for the majority of installations.
Frequently Asked Questions
Which is better, Mission Solar MSE415 or Aptos Solar DNA-120-MF26 370W?
The Mission Solar MSE415 wins this comparison by a clear margin. It leads in efficiency (21% vs 20.28%) and matches or exceeds on warranty (25 vs 25 years). For most residential installations, the Mission Solar MSE415 is the stronger choice.
Which panel is more efficient, Mission Solar MSE415 or Aptos Solar DNA-120-MF26 370W?
The Mission Solar MSE415 at 21% module efficiency. Higher efficiency means more watts per square foot of roof space, which is critical for space-constrained installations. The difference of 0.7 percentage points translates to approximately 45W per panel under standard test conditions.
Which has a better warranty, Mission Solar MSE415 or Aptos Solar DNA-120-MF26 370W?
The Mission Solar MSE415 comes with a 25-year product warranty and 25-year performance guarantee. The Aptos Solar DNA-120-MF26 370W offers 25-year product and 30-year performance warranties. Both offer identical warranty terms.
Which panel performs better in hot weather?
The Mission Solar MSE415 has a temperature coefficient of -0.34%/°C and the Aptos Solar DNA-120-MF26 370W is -0.36%/°C. Mission Solar MSE415 retains more power in heat — important in states like Arizona, Texas, and Florida. A lower (less negative) temperature coefficient is better.
How many Mission Solar MSE415 vs Aptos Solar DNA-120-MF26 370W panels do I need for an 8 kW system?
For an 8 kW system: you need 20 Mission Solar MSE415 panels (415W each) or 22 Aptos Solar DNA-120-MF26 370W panels (370W each). The Mission Solar MSE415 requires fewer panels, saving on racking hardware and installation labor.
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Last updated: February 2026