Seraphim S4 Series 430W vs Aptos Solar DNA-144-BF26 440W
The Aptos Solar DNA-144-BF26 440W wins this comparison by a decisive margin. It delivers more power (440W vs 430W). For most residential installations, the Aptos Solar DNA-144-BF26 440W is the stronger choice.
Key Differences
- • Seraphim S4 Series 430W is rated at 430W while Aptos Solar DNA-144-BF26 440W is rated at 440W, a 10W difference.
- • Seraphim S4 Series 430W achieves 21.2% efficiency vs 20.21% for the other, a 1.0 percentage point gap.
- • Aptos Solar DNA-144-BF26 440W comes with a 25-year product warranty vs 12 years for the other.
- • Seraphim S4 Series 430W has a superior temperature coefficient of -0.34%/°C vs -0.35%/°C, retaining more power in hot climates.
- • Seraphim S4 Series 430W uses PERC Mono cells while Aptos Solar DNA-144-BF26 440W uses PERC Mono Bifacial cells, representing different technology generations.
Specifications Breakdown
Module Efficiency
The Seraphim S4 Series 430W achieves 21.2% module efficiency compared to Aptos Solar DNA-144-BF26 440W's 20.21%, meaning Seraphim S4 Series 430W converts 1.0 percentage points more sunlight into electricity per square meter. In practical terms, the Seraphim S4 Series 430W produces 220.2 watts per square meter of panel area while the Aptos Solar DNA-144-BF26 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-BF26 440W delivers 440W per panel versus 430W for the Seraphim S4 Series 430W, a 10W difference per module. To build an 8 kW residential system, you would need 19 Seraphim S4 Series 430W panels or 19 Aptos Solar DNA-144-BF26 440W 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
The Seraphim S4 Series 430W has a temperature coefficient of -0.34%/°C versus -0.35%/°C for the Aptos Solar DNA-144-BF26 440W. On a hot summer day when cell temperature reaches 65°C (40°C above the 25°C STC baseline), the Seraphim S4 Series 430W retains 93.2% 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 Seraphim S4 Series 430W is backed by a 12-year product warranty and 25-year performance guarantee, while the Aptos Solar DNA-144-BF26 440W offers 25-year product and 30-year performance coverage. The Aptos Solar DNA-144-BF26 440W provides 13 additional years of defect protection, covering manufacturing issues, material failures, and premature performance loss. Based on their published degradation rates (1.5% first year then 0.5%/year for Seraphim S4 Series 430W; 1% first year then 0.54%/year for Aptos Solar DNA-144-BF26 440W), after 25 years the Seraphim S4 Series 430W should retain approximately 86.5% of original output versus 86.0% for the Aptos Solar DNA-144-BF26 440W. The end-of-life output levels are closely matched.
Physical Dimensions & Weight
The Seraphim S4 Series 430W measures 1722×1134×30mm and weighs 21 kg, while the Aptos Solar DNA-144-BF26 440W measures 2095×1039×40mm at 24.1 kg. 1.95 m² of panel area for the Seraphim S4 Series 430W versus 2.18 m² for the Aptos Solar DNA-144-BF26 440W. The Seraphim S4 Series 430W is 3.1 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 62 kg. The more compact Seraphim S4 Series 430W may be easier to fit on irregularly shaped or space-limited rooftops.
Specification Comparison
| Specification | Seraphim S4 Series 430W | Aptos Solar DNA-144-BF26 440W |
|---|---|---|
| Power | 430W | 440W |
| Efficiency | 21.2% | 20.21% |
| Power Density | 20.5 W/sq ft | 18.8 W/sq ft |
| Cell Type | PERC Mono | PERC Mono Bifacial |
| Bifacial | No | Yes |
| Weight | 21 kg | 24.1 kg |
| Temp Coefficient | -0.34%/°C | -0.35%/°C |
| Snow Load | 5400 Pa | 5400 Pa |
| Wind Load | 2400 Pa | 4000 Pa |
| Product Warranty | 12 years | 25 years |
| Performance Warranty | 25 years | 30 years |
| Degradation (Year 1) | 1.5% | 1% |
| Annual Degradation | 0.5% | 0.54% |
| Country | China | Vietnam |
5-Dimension Head-to-Head Analysis
1. Efficiency & Power Density
Winner: Seraphim S4 Series 430WThe Seraphim S4 Series 430W achieves 21.2% efficiency versus 20.21% — a 1.0 percentage point advantage. On a typical 30-panel residential roof, this translates to approximately 0.3 kW more total system capacity, or 2 kWh more annual production in an average US location.
2. Hot Climate Performance
Winner: Seraphim S4 Series 430WThe Seraphim S4 Series 430W has a better temperature coefficient of -0.34%/°C versus -0.35%/°C. On a 45°C summer day (20°C above STC), the winner retains 93.2% 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-144-BF26 440WAptos Solar DNA-144-BF26 440W leads with a 25-year product warranty versus 12 years. Seraphim S4 Series 430W degrades more slowly at 0.5% per year versus 0.54%. After 25 years, expect 86.5% vs 86.0% of original output for Seraphim S4 Series 430W and Aptos Solar DNA-144-BF26 440W respectively.
4. Power Output
Winner: Aptos Solar DNA-144-BF26 440WThe Aptos Solar DNA-144-BF26 440W delivers 440W versus 430W per panel — 10W more. For an 8 kW system, you need 19 panels with the higher-wattage option versus 19 panels, saving 0 panels and the associated racking and labor costs.
5. Cell Technology
Winner: TieThe Seraphim S4 Series 430W uses PERC Mono: PERC (Passivated Emitter Rear Cell) is the current mainstream technology, offering good efficiency at the lowest manufacturing cost. The Aptos Solar DNA-144-BF26 440W uses PERC Mono Bifacial: PERC (Passivated Emitter Rear Cell) is the current mainstream technology, offering good efficiency at the lowest manufacturing cost. Both are equivalent-generation technologies.
Seraphim S4 Series 430W
The Seraphim S4 Series delivers 430W using proven PERC technology at a competitive price point for residential installations.
Pros
- + Competitive pricing
- + Proven PERC technology
- + Compact design
- + Good value
Cons
- - Standard PERC efficiency
- - Shorter warranty period
- - Limited US presence
Aptos Solar DNA-144-BF26 440W
Aptos Solar DNA-144-BF26 is a 440W bifacial all-black panel with 144 half-cut cells and up to 30% rear-side energy gain for commercial applications.
Pros
- + Bifacial design with up to 30% additional energy
- + 440W high output with 144 half-cut cells
- + All-black aesthetic
- + 30-year performance warranty
Cons
- - Bifacial gain requires optimized mounting
- - Larger panel dimensions
- - 20.21% efficiency is moderate
Choose Seraphim S4 Series 430W If...
- ✓ Your roof space is limited and you need maximum power per panel
- ✓ 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
- ✓ Budget residential installations seeking competitive PERC pricing.
Choose Aptos Solar DNA-144-BF26 440W If...
- ✓ You want fewer panels to reach your target system size, reducing racking and labor costs
- ✓ Long-term warranty protection is a top priority and you plan to stay in your home for 25+ years
- ✓ Commercial ground-mount and tracker systems seeking bifacial energy gain with an all-black panel design.
Our Recommendation
The Aptos Solar DNA-144-BF26 440W is the decisive winner in this solar panel comparison, outperforming the Seraphim S4 Series 430W in 2 of 5 dimensions. Unless you have a specific requirement that the Seraphim S4 Series 430W uniquely addresses, the Aptos Solar DNA-144-BF26 440W is the stronger choice for virtually every installation scenario.
Frequently Asked Questions
Which is better, Seraphim S4 Series 430W or Aptos Solar DNA-144-BF26 440W?
The Aptos Solar DNA-144-BF26 440W wins this comparison by a decisive margin. It delivers more power (440W vs 430W). For most residential installations, the Aptos Solar DNA-144-BF26 440W is the stronger choice.
Which panel is more efficient, Seraphim S4 Series 430W or Aptos Solar DNA-144-BF26 440W?
The Seraphim S4 Series 430W 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 1.0 percentage points translates to approximately 10W per panel under standard test conditions.
Which has a better warranty, Seraphim S4 Series 430W or Aptos Solar DNA-144-BF26 440W?
The Seraphim S4 Series 430W comes with a 12-year product warranty and 25-year performance guarantee. The Aptos Solar DNA-144-BF26 440W offers 25-year product and 30-year performance warranties. Aptos Solar DNA-144-BF26 440W provides 13 additional years of product coverage.
Which panel performs better in hot weather?
The Seraphim S4 Series 430W has a temperature coefficient of -0.34%/°C and the Aptos Solar DNA-144-BF26 440W is -0.35%/°C. Seraphim S4 Series 430W retains more power in heat — important in states like Arizona, Texas, and Florida. A lower (less negative) temperature coefficient is better.
How many Seraphim S4 Series 430W vs Aptos Solar DNA-144-BF26 440W panels do I need for an 8 kW system?
For an 8 kW system: you need 19 Seraphim S4 Series 430W panels (430W each) or 19 Aptos Solar DNA-144-BF26 440W panels (440W each). The Aptos Solar DNA-144-BF26 440W requires fewer panels, saving on racking hardware and installation labor.
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Last updated: February 2026