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SRP-730-BHC-BG vs SEG-470-BTB-BG 4 of 19 identical Swap Change panels

Seraphim SRP-730-BHC-BG vs Seraphim SEG-470-BTB-BG

Seraphim SRP-730-BHC-BG
SRP-730-BHC-BG
730 Wp 23.50 % HJT Bifacial
VS
SEG-470-BTB-BG
470 Wp 21.71 % TOPCon Bifacial
The verdict

SRP-730-BHC-BG leads on the differences that matter

The largest is module efficiency: 1.79 pp more efficient. 4 of 19 comparable parameters are identical.

See all 15 differences
How alike are they
4 of 19 comparable
parameters are identical
identical differs
01

What actually differs

15 of 19 parameters
Parameter SRP-730-BHC-BG SEG-470-BTB-BG Difference
Module efficiency 23.50 % 21.71 % 1.79 pp more efficient
Temperature coefficient -0.258 %/°C -0.300 %/°C 0.042 %/°C better in heat
Rated power 730 Wp 470 Wp 260 W more power
Power density 235.0 Wp/m² 217.1 Wp/m² 17.9 Wp/m² higher
Weight 38.5 kg 27.3 kg 11.2 kg lighter
Weight per kWp 52.7 kg/kWp 58.1 kg/kWp 5.3 kg/kWp lighter
Annual degradation 0.30 %/yr 0.40 %/yr 0.10 %/yr slower
Open-circuit voltage 51.12 V 42.80 V 8.32 V apart
Short-circuit current 17.80 A 13.88 A 3.92 A apart
Module area 3.106 m² 2.165 m² 0.942 m² apart
Cell technology HJT TOPCon HJT vs TOPCon
Voltage at max power 43.10 V 35.60 V 7.50 V apart
Current at max power 17.00 A 13.21 A 3.79 A apart
Cell count 132 120 12 cells apart
Dimensions 2384x1303x33 mm 1909x1134x30 mm 2384x1303x33 mm vs 1909x1134x30 mm
02

What it means on a roof

Thirty years of production
Each panel's own declared degradation curve, at 1,200 kWh/kWp a year
SRP-730-BHC-BG
24,874 kWh
SEG-470-BTB-BG
15,499 kWh
Lifetime gap
9,375 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario SRP-730-BHC-BG SEG-470-BTB-BG
Standard test conditions 25 °C 100.0% of rated power 730 W 470 W
Cool, bright day 40 °C 95.5% of rated power 702 W 449 W
Typical summer roof 55 °C 91.0% of rated power 673 W 428 W
Hot roof 70 °C 86.5% of rated power 645 W 407 W
03

Full specification

Parameter SRP-730-BHC-BG SEG-470-BTB-BG Difference
Power and efficiency
Rated power 730 Wp 470 Wp +260 W for SRP-730-BHC-BG
Module efficiency 23.50 % 21.71 % +1.79 pp for SRP-730-BHC-BG
Power density 235.0 Wp/m² 217.1 Wp/m² +17.9 Wp/m² for SRP-730-BHC-BG
Open-circuit voltage 51.12 V 42.80 V 8.32 V apart
Voltage at max power 43.10 V 35.60 V 7.50 V apart
Short-circuit current 17.80 A 13.88 A 3.92 A apart
Current at max power 17.00 A 13.21 A 3.79 A apart
Temperature
Temperature coefficient -0.258 %/°C -0.300 %/°C +0.042 %/°C for SRP-730-BHC-BG
Mechanical
Dimensions 2384x1303x33 mm 1909x1134x30 mm 2384x1303x33 mm vs 1909x1134x30 mm
Module area 3.106 m² 2.165 m² 0.942 m² apart
Weight 38.5 kg 27.3 kg -11.2 kg for SEG-470-BTB-BG
Weight per kWp 52.7 kg/kWp 58.1 kg/kWp -5.3 kg/kWp for SRP-730-BHC-BG
Warranty and degradation
Product warranty 15 yrs 15 yrs Same
Performance warranty 30 yrs 30 yrs Same
Annual degradation 0.30 %/yr 0.40 %/yr -0.10 %/yr for SRP-730-BHC-BG
Technology
Cell technology HJT TOPCon HJT vs TOPCon
Cell type Monocrystalline Monocrystalline Same
Cell count 132 120 12 cells apart
Bifacial Yes Yes Same
04

Against the whole database

14,005 panels
Efficiency
#716 vs #7,411
SRP-730-BHC-BG leads by 6,695 places
Power density
#800 vs #7,401
SRP-730-BHC-BG leads by 6,601 places
Heat behaviour
#466 vs #6,093
SRP-730-BHC-BG leads by 5,627 places
Weight
#6,396 vs #11,559
SRP-730-BHC-BG leads by 5,163 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#208 vs #8,772
SRP-730-BHC-BG leads by 8,564 places
05

More useful comparisons

Open the full database
Same series, other bin
Seraphim SRP-730-BHC-BG vs Seraphim SRP-725-BHC-BG
The same specification on paper
Same series, other bin
Seraphim SRP-730-BHC-BG vs Seraphim SRP-720-BHC-BG
3 differences, the largest is module efficiency
Same series, other bin
Seraphim SRP-730-BHC-BG vs Seraphim SRP-715-BHC-BG
3 differences, the largest is module efficiency
Same series, other bin
Seraphim SRP-730-BHC-BG vs Seraphim SRP-710-BHC-BG
3 differences, the largest is module efficiency
Same series, other bin
Seraphim SRP-730-BHC-BG vs Seraphim SRP-705-BHC-BG
3 differences, the largest is module efficiency
Same series, other bin
Seraphim SEG-470-BTB-BG vs Seraphim SEG-495-BTB-BG
8 differences, the largest is module efficiency
06

Written summary

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07

Questions about this pairing

Which panel is better: Seraphim SRP-730-BHC-BG or Seraphim SEG-470-BTB-BG?
According to our database: Seraphim SRP-730-BHC-BG has higher module efficiency (23.50% vs 21.71%); Seraphim SRP-730-BHC-BG tolerates heat better (temp coeff -0.258%/°C vs -0.300%/°C). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Seraphim SRP-730-BHC-BG and Seraphim SEG-470-BTB-BG?
Seraphim SRP-730-BHC-BG has a module efficiency of 23.50%, while Seraphim SEG-470-BTB-BG is 21.71%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Seraphim SRP-730-BHC-BG use vs Seraphim SEG-470-BTB-BG?
Seraphim SRP-730-BHC-BG uses HJT cells; Seraphim SEG-470-BTB-BG uses TOPCon. Modern n-type technologies (TOPCon, HJT, BC) typically deliver higher efficiency and lower degradation compared to older PERC (p-type) cells.
What is the warranty on Seraphim SRP-730-BHC-BG and Seraphim SEG-470-BTB-BG?
Seraphim SRP-730-BHC-BG has a 30 years power warranty; Seraphim SEG-470-BTB-BG has a 30 years power warranty. The power warranty guarantees a minimum percentage of rated output at the end of the warranty period (typically 80-87%). Product (materials) warranties are usually shorter.
Are Seraphim SRP-730-BHC-BG and Seraphim SEG-470-BTB-BG bifacial panels?
Both Seraphim SRP-730-BHC-BG and Seraphim SEG-470-BTB-BG are bifacial - they capture reflected light from the ground, which can add 5-15% more annual energy on ground-mount or elevated rooftop installations with a light surface beneath.

Shop prices: See 4 Seraphim offers

Every figure here is from the manufacturers' own datasheets - a dash means the value is not published, never an estimate. The thirty-year projection and the temperature scenarios are calculations from those figures, and each states its assumption above.