Silfab SIL-410-BG 410W vs Mission Solar MSE415
The Silfab SIL-410-BG 410W wins this comparison by a narrow margin. It leads in efficiency (21.2% vs 21%) and matches or exceeds on warranty (25 vs 25 years). For most residential installations, the Silfab SIL-410-BG 410W is the stronger choice.
Key Differences
- • Silfab SIL-410-BG 410W is rated at 410W while Mission Solar MSE415 is rated at 415W, a 5W difference.
- • Silfab SIL-410-BG 410W achieves 21.2% efficiency vs 21% for the other, a 0.2 percentage point gap.
- • Both carry matching 25-year product warranties.
Specifications Breakdown
Module Efficiency
The Silfab SIL-410-BG 410W achieves 21.2% module efficiency compared to Mission Solar MSE415's 21%, meaning Silfab SIL-410-BG 410W converts 0.2 percentage points more sunlight into electricity per square meter. In practical terms, the Silfab SIL-410-BG 410W produces 210.0 watts per square meter of panel area while the Mission Solar MSE415 produces 212.5 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 410W for the Silfab SIL-410-BG 410W, a 5W difference per module. To build an 8 kW residential system, you would need 20 Silfab SIL-410-BG 410W panels or 20 Mission Solar MSE415 panels. Despite the per-panel wattage difference, both require the same number of panels for this system size due to rounding. 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 -0.34%/°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 93.2% of rated power. Neither panel has a thermal performance advantage, which makes this specification a non-factor in the comparison.
Warranty Coverage
The Silfab SIL-410-BG 410W is backed by a 25-year product warranty and 30-year performance guarantee, while the Mission Solar MSE415 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 Silfab SIL-410-BG 410W; 1% first year then 0.4%/year for Mission Solar MSE415), after 25 years the Silfab SIL-410-BG 410W should retain approximately 89.4% of original output versus 89.4% for the Mission Solar MSE415. The end-of-life output levels are closely matched.
Physical Dimensions & Weight
The Silfab SIL-410-BG 410W measures 1722×1134×30mm and weighs 21 kg, while the Mission Solar MSE415 measures 1722×1134×30mm at 21.5 kg. 1.95 m² of panel area for the Silfab SIL-410-BG 410W versus 1.95 m² for the Mission Solar MSE415. 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 | Silfab SIL-410-BG 410W | Mission Solar MSE415 |
|---|---|---|
| Power | 410W | 415W |
| Efficiency | 21.2% | 21% |
| Power Density | 19.5 W/sq ft | 19.7 W/sq ft |
| Cell Type | PERC Mono | PERC Mono |
| Bifacial | No | No |
| Weight | 21 kg | 21.5 kg |
| Temp Coefficient | -0.34%/°C | -0.34%/°C |
| Snow Load | 5400 Pa | 5400 Pa |
| Wind Load | 2400 Pa | 2400 Pa |
| Product Warranty | 25 years | 25 years |
| Performance Warranty | 30 years | 25 years |
| Degradation (Year 1) | 1% | 1% |
| Annual Degradation | 0.4% | 0.4% |
| Country | United States | United States |
5-Dimension Head-to-Head Analysis
1. Efficiency & Power Density
Winner: Silfab SIL-410-BG 410WThe Silfab SIL-410-BG 410W achieves 21.2% efficiency versus 21% — a 0.2 percentage point advantage. On a typical 30-panel residential roof, this translates to approximately 0.1 kW more total system capacity, or 1 kWh more annual production in an average US location.
2. Hot Climate Performance
Winner: TieBoth panels share a temperature coefficient of -0.34%/°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: Mission Solar MSE415The Mission Solar MSE415 delivers 415W versus 410W per panel — 5W more. For an 8 kW system, you need 20 panels with the higher-wattage option versus 20 panels, saving 0 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.
Silfab SIL-410-BG 410W
The SIL-410-BG is Silfab's all-black residential PERC panel offering 410W with US manufacturing and a 25-year warranty.
Pros
- + US manufactured
- + All-black aesthetics
- + 25-year warranty
- + ARRA compliant
Cons
- - Standard PERC efficiency
- - Higher cost per watt
- - Limited model range
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
Choose Silfab SIL-410-BG 410W If...
- ✓ Your roof space is limited and you need maximum power per panel
- ✓ Homeowners wanting US-made, all-black panels with Buy America compliance.
Choose Mission Solar MSE415 If...
- ✓ You want fewer panels to reach your target system size, reducing racking and labor costs
- ✓ Patriotic homeowners wanting Texas-made solar panels with a strong warranty.
Our Recommendation
Both the Silfab SIL-410-BG 410W and Mission Solar MSE415 are excellent solar panel options, and the margin between them is narrow. The Silfab SIL-410-BG 410W wins 1 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, Silfab SIL-410-BG 410W or Mission Solar MSE415?
The Silfab SIL-410-BG 410W wins this comparison by a narrow margin. It leads in efficiency (21.2% vs 21%) and matches or exceeds on warranty (25 vs 25 years). For most residential installations, the Silfab SIL-410-BG 410W is the stronger choice.
Which panel is more efficient, Silfab SIL-410-BG 410W or Mission Solar MSE415?
The Silfab SIL-410-BG 410W at 21.2% module efficiency. Higher efficiency means more watts per square foot of roof space, which is critical for space-constrained installations. The difference of 0.2 percentage points translates to approximately 5W per panel under standard test conditions.
Which has a better warranty, Silfab SIL-410-BG 410W or Mission Solar MSE415?
The Silfab SIL-410-BG 410W comes with a 25-year product warranty and 30-year performance guarantee. The Mission Solar MSE415 offers 25-year product and 25-year performance warranties. Both offer identical warranty terms.
Which panel performs better in hot weather?
The Silfab SIL-410-BG 410W has a temperature coefficient of -0.34%/°C and the Mission Solar MSE415 is -0.34%/°C. Both handle heat equally. A lower (less negative) temperature coefficient is better.
How many Silfab SIL-410-BG 410W vs Mission Solar MSE415 panels do I need for an 8 kW system?
For an 8 kW system: you need 20 Silfab SIL-410-BG 410W panels (410W each) or 20 Mission Solar MSE415 panels (415W each). The Mission Solar MSE415 requires fewer panels, saving on racking hardware and installation labor.
Related Resources
Last updated: February 2026