Silfab SIL-410-BG 410W vs Seraphim SRP-445-BMA-HV
The Silfab SIL-410-BG 410W wins this comparison by a clear margin. It offers better long-term durability with 25-year warranty. 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 Seraphim SRP-445-BMA-HV is rated at 445W, a 35W difference.
- • Seraphim SRP-445-BMA-HV achieves 22% efficiency vs 21.2% for the other, a 0.8 percentage point gap.
- • Silfab SIL-410-BG 410W comes with a 25-year product warranty vs 15 years for the other.
- • Seraphim SRP-445-BMA-HV has a superior temperature coefficient of -0.29%/°C vs -0.34%/°C, retaining more power in hot climates.
- • Silfab SIL-410-BG 410W uses PERC Mono cells while Seraphim SRP-445-BMA-HV uses TOPCon N-type cells, representing different technology generations.
Specifications Breakdown
Module Efficiency
The Seraphim SRP-445-BMA-HV achieves 22% module efficiency compared to Silfab SIL-410-BG 410W's 21.2%, meaning Seraphim SRP-445-BMA-HV converts 0.8 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 Seraphim SRP-445-BMA-HV produces 227.9 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 Seraphim SRP-445-BMA-HV delivers 445W per panel versus 410W for the Silfab SIL-410-BG 410W, a 35W difference per module. To build an 8 kW residential system, you would need 20 Silfab SIL-410-BG 410W panels or 18 Seraphim SRP-445-BMA-HV 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 Seraphim SRP-445-BMA-HV has a temperature coefficient of -0.29%/°C versus -0.34%/°C for the Silfab SIL-410-BG 410W. On a hot summer day when cell temperature reaches 65°C (40°C above the 25°C STC baseline), the Seraphim SRP-445-BMA-HV retains 94.2% of its rated power while the other retains 93.2%. This difference is particularly significant in hot climates such as the American Southwest, the Middle East, and Southeast Asia, where panels routinely operate 30-40°C above STC for several hours each day. Over the system lifetime, the cumulative energy advantage from a better temperature coefficient can amount to 2-4% of total production.
Warranty Coverage
The Silfab SIL-410-BG 410W is backed by a 25-year product warranty and 30-year performance guarantee, while the Seraphim SRP-445-BMA-HV offers 15-year product and 30-year performance coverage. The Silfab SIL-410-BG 410W provides 10 additional years of defect protection, covering manufacturing issues, material failures, and premature performance loss. Based on their published degradation rates (1% first year then 0.4%/year for Silfab SIL-410-BG 410W; 1% first year then 0.4%/year for Seraphim SRP-445-BMA-HV), after 25 years the Silfab SIL-410-BG 410W should retain approximately 89.4% of original output versus 89.4% for the Seraphim SRP-445-BMA-HV. 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 Seraphim SRP-445-BMA-HV 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 Seraphim SRP-445-BMA-HV. 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 | Seraphim SRP-445-BMA-HV |
|---|---|---|
| Power | 410W | 445W |
| Efficiency | 21.2% | 22% |
| Power Density | 19.5 W/sq ft | 21.2 W/sq ft |
| Cell Type | PERC Mono | TOPCon N-type |
| Bifacial | No | No |
| Weight | 21 kg | 21.5 kg |
| Temp Coefficient | -0.34%/°C | -0.29%/°C |
| Snow Load | 5400 Pa | 5400 Pa |
| Wind Load | 2400 Pa | 2400 Pa |
| Product Warranty | 25 years | 15 years |
| Performance Warranty | 30 years | 30 years |
| Degradation (Year 1) | 1% | 1% |
| Annual Degradation | 0.4% | 0.4% |
| Country | United States | China |
5-Dimension Head-to-Head Analysis
1. Efficiency & Power Density
Winner: Seraphim SRP-445-BMA-HVThe Seraphim SRP-445-BMA-HV achieves 22% efficiency versus 21.2% — a 0.8 percentage point advantage. On a typical 30-panel residential roof, this translates to approximately 1.1 kW more total system capacity, or 5 kWh more annual production in an average US location.
2. Hot Climate Performance
Winner: Seraphim SRP-445-BMA-HVThe Seraphim SRP-445-BMA-HV has a better temperature coefficient of -0.29%/°C versus -0.34%/°C. On a 45°C summer day (20°C above STC), the winner retains 94.2% of rated power versus 93.2%. This is a meaningful difference in hot states like Arizona, Texas, and Florida.
3. Durability & Warranty
Winner: Silfab SIL-410-BG 410WSilfab SIL-410-BG 410W leads with a 25-year product warranty versus 15 years. After 25 years, expect 89.4% vs 89.4% of original output for Silfab SIL-410-BG 410W and Seraphim SRP-445-BMA-HV respectively.
4. Power Output
Winner: Seraphim SRP-445-BMA-HVThe Seraphim SRP-445-BMA-HV delivers 445W versus 410W per panel — 35W more. For an 8 kW system, you need 18 panels with the higher-wattage option versus 20 panels, saving 2 panels and the associated racking and labor costs.
5. Cell Technology
Winner: Seraphim SRP-445-BMA-HVThe Silfab SIL-410-BG 410W uses PERC Mono: PERC (Passivated Emitter Rear Cell) is the current mainstream technology, offering good efficiency at the lowest manufacturing cost. The Seraphim SRP-445-BMA-HV uses TOPCon N-type: TOPCon (Tunnel Oxide Passivated Contact) adds a thin tunnel oxide layer to reduce recombination losses, achieving higher efficiency than PERC while being manufacturable on existing production lines. TOPCon N-type represents a newer generation technology with a longer performance runway as manufacturing matures.
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
Seraphim SRP-445-BMA-HV
Seraphim SRP-445-BMA-HV is an all-black N-type TOPCon panel delivering 445W with clean aesthetics for residential installations.
Pros
- + All-black aesthetics
- + N-type TOPCon technology
- + Compact residential format
- + Competitive pricing
Cons
- - Less known in US market
- - Limited installer base
- - Standard warranty
Choose Silfab SIL-410-BG 410W If...
- ✓ Long-term warranty protection is a top priority and you plan to stay in your home for 25+ years
- ✓ Homeowners wanting US-made, all-black panels with Buy America compliance.
Choose Seraphim SRP-445-BMA-HV 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 prefer newer cell technology with a longer performance improvement runway
- ✓ Aesthetics-focused homeowners wanting all-black N-type panels at a good price.
Our Recommendation
We recommend the Silfab SIL-410-BG 410W for most buyers in this comparison. It wins 1 of 5 key dimensions and offers a clear advantage in the metrics that matter most for a solar panel purchase. The Seraphim SRP-445-BMA-HV remains a good product, but the Silfab SIL-410-BG 410W delivers better overall value for the majority of installations.
Frequently Asked Questions
Which is better, Silfab SIL-410-BG 410W or Seraphim SRP-445-BMA-HV?
The Silfab SIL-410-BG 410W wins this comparison by a clear margin. It offers better long-term durability with 25-year warranty. 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 Seraphim SRP-445-BMA-HV?
The Seraphim SRP-445-BMA-HV at 22% module efficiency. Higher efficiency means more watts per square foot of roof space, which is critical for space-constrained installations. The difference of 0.8 percentage points translates to approximately 35W per panel under standard test conditions.
Which has a better warranty, Silfab SIL-410-BG 410W or Seraphim SRP-445-BMA-HV?
The Silfab SIL-410-BG 410W comes with a 25-year product warranty and 30-year performance guarantee. The Seraphim SRP-445-BMA-HV offers 15-year product and 30-year performance warranties. Silfab SIL-410-BG 410W provides 10 additional years of product coverage.
Which panel performs better in hot weather?
The Silfab SIL-410-BG 410W has a temperature coefficient of -0.34%/°C and the Seraphim SRP-445-BMA-HV is -0.29%/°C. Seraphim SRP-445-BMA-HV retains more power in heat — important in states like Arizona, Texas, and Florida. A lower (less negative) temperature coefficient is better.
How many Silfab SIL-410-BG 410W vs Seraphim SRP-445-BMA-HV 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 18 Seraphim SRP-445-BMA-HV panels (445W each). The Seraphim SRP-445-BMA-HV requires fewer panels, saving on racking hardware and installation labor.
Related Resources
Last updated: February 2026