Seraphim S4 Series 430W vs Renogy 100W Portable Solar Panel
The Seraphim S4 Series 430W wins this comparison by a decisive margin. It delivers more power (430W vs 100W). For most residential installations, the Seraphim S4 Series 430W is the stronger choice.
Key Differences
- • Seraphim S4 Series 430W is rated at 430W while Renogy 100W Portable Solar Panel is rated at 100W, a 330W difference.
- • Renogy 100W Portable Solar Panel achieves 23.5% efficiency vs 21.2% for the other, a 2.3 percentage point gap.
- • Seraphim S4 Series 430W comes with a 12-year product warranty vs 2 years for the other.
- • Seraphim S4 Series 430W has a superior temperature coefficient of -0.34%/°C vs -0.37%/°C, retaining more power in hot climates.
- • Seraphim S4 Series 430W uses PERC Mono cells while Renogy 100W Portable Solar Panel uses Monocrystalline cells, representing different technology generations.
Specifications Breakdown
Module Efficiency
The Renogy 100W Portable Solar Panel achieves 23.5% module efficiency compared to Seraphim S4 Series 430W's 21.2%, meaning Renogy 100W Portable Solar Panel converts 2.3 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 Renogy 100W Portable Solar Panel produces 525.6 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 S4 Series 430W delivers 430W per panel versus 100W for the Renogy 100W Portable Solar Panel, a 330W difference per module. To build an 8 kW residential system, you would need 19 Seraphim S4 Series 430W panels or 80 Renogy 100W Portable Solar Panel panels. Choosing the higher-wattage option saves 61 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 S4 Series 430W has a temperature coefficient of -0.34%/°C versus -0.37%/°C for the Renogy 100W Portable Solar Panel. 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 92.6%. 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 Renogy 100W Portable Solar Panel offers 2-year product and 2-year performance coverage. The Seraphim S4 Series 430W provides 10 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; 2.5% first year then 0.7%/year for Renogy 100W Portable Solar Panel), after 25 years the Seraphim S4 Series 430W should retain approximately 86.5% of original output versus 80.7% for the Renogy 100W Portable Solar Panel. This 5.8 percentage point gap in end-of-life output meaningfully impacts lifetime energy economics.
Physical Dimensions & Weight
The Seraphim S4 Series 430W measures 1722×1134×30mm and weighs 21 kg, while the Renogy 100W Portable Solar Panel measures 506×376×71mm at 4.8 kg. 1.95 m² of panel area for the Seraphim S4 Series 430W versus 0.19 m² for the Renogy 100W Portable Solar Panel. The Renogy 100W Portable Solar Panel is 16.2 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 324 kg. The more compact Renogy 100W Portable Solar Panel may be easier to fit on irregularly shaped or space-limited rooftops.
Specification Comparison
| Specification | Seraphim S4 Series 430W | Renogy 100W Portable Solar Panel |
|---|---|---|
| Power | 430W | 100W |
| Efficiency | 21.2% | 23.5% |
| Power Density | 20.5 W/sq ft | 48.8 W/sq ft |
| Cell Type | PERC Mono | Monocrystalline |
| Bifacial | No | No |
| Weight | 21 kg | 4.8 kg |
| Temp Coefficient | -0.34%/°C | -0.37%/°C |
| Snow Load | 5400 Pa | N/A |
| Wind Load | 2400 Pa | N/A |
| Product Warranty | 12 years | 2 years |
| Performance Warranty | 25 years | 2 years |
| Degradation (Year 1) | 1.5% | 2.5% |
| Annual Degradation | 0.5% | 0.7% |
| Country | China | China |
5-Dimension Head-to-Head Analysis
1. Efficiency & Power Density
Winner: Renogy 100W Portable Solar PanelThe Renogy 100W Portable Solar Panel achieves 23.5% efficiency versus 21.2% — a 2.3 percentage point advantage. On a typical 30-panel residential roof, this translates to approximately 9.9 kW more total system capacity, or 45 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 -0.37%/°C. On a 45°C summer day (20°C above STC), the winner retains 93.2% of rated power versus 92.6%. The difference is modest but accumulates over 25 years of summer production.
3. Durability & Warranty
Winner: Seraphim S4 Series 430WSeraphim S4 Series 430W leads with a 12-year product warranty versus 2 years. Seraphim S4 Series 430W degrades more slowly at 0.5% per year versus 0.7%. After 25 years, expect 86.5% vs 80.7% of original output for Seraphim S4 Series 430W and Renogy 100W Portable Solar Panel respectively.
4. Power Output
Winner: Seraphim S4 Series 430WThe Seraphim S4 Series 430W delivers 430W versus 100W per panel — 330W more. For an 8 kW system, you need 19 panels with the higher-wattage option versus 80 panels, saving 61 panels and the associated racking and labor costs.
5. Cell Technology
Winner: Renogy 100W Portable Solar PanelThe 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 Renogy 100W Portable Solar Panel uses Monocrystalline: Monocrystalline. Monocrystalline represents a newer generation technology with a longer performance runway as manufacturing matures.
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
Renogy 100W Portable Solar Panel
The Renogy 100W Portable Solar Panel is a foldable, lightweight panel with an integrated kickstand and IP65 weather resistance, designed for camping, RV trips, and emergency power. Dimensions listed are folded (506×376×71mm).
Pros
- + Ultra-lightweight at 4.8 kg for portability
- + 23.5% efficiency — high for portable class
- + Integrated adjustable kickstand
- + IP65 water and dust resistance
- + Foldable design for compact storage
Cons
- - 2-year warranty significantly shorter than rigid panels
- - Higher cost per watt than rigid 100W panel
- - Folding design less durable than rigid frame
- - Not suitable for permanent installation
Choose Seraphim S4 Series 430W 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 12+ years
- ✓ 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 Renogy 100W Portable Solar Panel If...
- ✓ Your roof space is limited and you need maximum power per panel
- ✓ Campers, overlanders, and emergency preparedness users needing a compact, grab-and-go solar charging solution.
Our Recommendation
The Seraphim S4 Series 430W is the decisive winner in this solar panel comparison, outperforming the Renogy 100W Portable Solar Panel in 3 of 5 dimensions. Unless you have a specific requirement that the Renogy 100W Portable Solar Panel uniquely addresses, the Seraphim S4 Series 430W is the stronger choice for virtually every installation scenario.
Frequently Asked Questions
Which is better, Seraphim S4 Series 430W or Renogy 100W Portable Solar Panel?
The Seraphim S4 Series 430W wins this comparison by a decisive margin. It delivers more power (430W vs 100W). For most residential installations, the Seraphim S4 Series 430W is the stronger choice.
Which panel is more efficient, Seraphim S4 Series 430W or Renogy 100W Portable Solar Panel?
The Renogy 100W Portable Solar Panel at 23.5% module efficiency. Higher efficiency means more watts per square foot of roof space, which is critical for space-constrained installations. The difference of 2.3 percentage points translates to approximately 330W per panel under standard test conditions.
Which has a better warranty, Seraphim S4 Series 430W or Renogy 100W Portable Solar Panel?
The Seraphim S4 Series 430W comes with a 12-year product warranty and 25-year performance guarantee. The Renogy 100W Portable Solar Panel offers 2-year product and 2-year performance warranties. Seraphim S4 Series 430W provides 10 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 Renogy 100W Portable Solar Panel is -0.37%/°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 Renogy 100W Portable Solar Panel 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 80 Renogy 100W Portable Solar Panel panels (100W each). The Seraphim S4 Series 430W requires fewer panels, saving on racking hardware and installation labor.
Related Resources
Last updated: February 2026