Skip to main content
S440HG(FB) vs S435HG(FB) 17 of 18 identical Swap Change panels

Hyundai HiE-S440HG(FB) vs Hyundai HiE-S435HG(FB)

Hyundai HiE-S440HG(FB)
HiE-S440HG(FB)
440 Wp 21.10 % PERC
Open panel page Datasheet PDF
VS
Hyundai HiE-S435HG(FB)
HiE-S435HG(FB)
435 Wp 20.90 % PERC
Open panel page Datasheet PDF
The verdict

S440HG(FB) leads on the differences that matter

The largest is module efficiency: 0.20 pp more efficient. 17 of 18 comparable parameters are identical, with 1 more left out because at least one datasheet does not publish it.

See the one difference
How alike are they
17 of 18 comparable
parameters are identical
identical differs not published
01

What actually differs

1 of 18 parameters
Parameter S440HG(FB) S435HG(FB) Difference
Module efficiency 21.10 % 20.90 % 0.20 pp more efficient
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
Same temp coeff. for both panels (-0.340 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
S440HG(FB)
14,260 kWh
S435HG(FB)
14,098 kWh
Lifetime gap
162 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario S440HG(FB) S435HG(FB)
Standard test conditions 25 °C 100.0% of rated power 440 W 435 W
Cool, bright day 40 °C 94.9% of rated power 418 W 413 W
Typical summer roof 55 °C 89.8% of rated power 395 W 391 W
Hot roof 70 °C 84.7% of rated power 373 W 368 W
03

Full specification

Parameter S440HG(FB) S435HG(FB) Difference
Power and efficiency
Rated power 440 Wp 435 Wp Effectively the same
Module efficiency 21.10 % 20.90 % +0.20 pp for S440HG(FB)
Power density 211.4 Wp/m² 209.0 Wp/m² Effectively the same
Open-circuit voltage 43.70 V 43.60 V Effectively the same
Voltage at max power 36.30 V 36.20 V Effectively the same
Short-circuit current 12.90 A 12.79 A Effectively the same
Current at max power 12.13 A 12.02 A Effectively the same
Temperature
Temperature coefficient -0.340 %/°C -0.340 %/°C Same
Mechanical
Dimensions 1899x1096x30 mm 1899x1096x30 mm Same
Module area 2.081 m² 2.081 m² Same
Weight 21.8 kg 21.8 kg Same
Weight per kWp 49.5 kg/kWp 50.1 kg/kWp Effectively the same
Warranty and degradation
Product warranty 25 yrs 25 yrs Same
Performance warranty 25 yrs 25 yrs Same
Annual degradation 0.55 %/yr 0.55 %/yr Same
Technology
Cell technology PERC PERC Same
Cell type Monocrystalline Monocrystalline Same
Cell count - - Neither datasheet publishes this
Bifacial No No Same
04

Against the whole database

14,129 panels
Efficiency
#9,365 vs #10,148
S440HG(FB) leads by 783 places
Power density
#9,276 vs #10,262
S440HG(FB) leads by 986 places
Heat behaviour
#8,846 vs #8,846
Tied - the same position in the database
Weight
#3,118 vs #3,628
S440HG(FB) leads by 510 places
Warranty
#9,912 vs #9,912
Tied - the same position in the database
Overall
#9,385 vs #9,722
S440HG(FB) leads by 337 places
05

More useful comparisons

Open the full database
Same series, other bin
Hyundai HiE-S440HG(FB) vs Hyundai HiE-S445HG
One difference: module efficiency
Same series, other bin
Hyundai HiE-S440HG(FB) vs Hyundai HiE-S445HG(FB)
One difference: module efficiency
Same series, other bin
Hyundai HiE-S440HG(FB) vs Hyundai HiE-S440HG
The same specification on paper
Same series, other bin
Hyundai HiE-S440HG(FB) vs Hyundai HiE-S435HG
One difference: module efficiency
Same series, other bin
Hyundai HiE-S440HG(FB) vs Hyundai HiE-S430HG(FB)
3 differences, the largest is module efficiency
Same manufacturer
Hyundai HiE-S440HG(FB) vs Hyundai HiS-T640NJ
17 differences, the largest is module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: Hyundai HiE-S440HG(FB) or Hyundai HiE-S435HG(FB)?
According to our database: Hyundai HiE-S440HG(FB) has higher module efficiency (21.10% vs 20.90%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Hyundai HiE-S440HG(FB) and Hyundai HiE-S435HG(FB)?
Hyundai HiE-S440HG(FB) has a module efficiency of 21.10%, while Hyundai HiE-S435HG(FB) is 20.90%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Hyundai HiE-S440HG(FB) use vs Hyundai HiE-S435HG(FB)?
Hyundai HiE-S440HG(FB) uses PERC cells; Hyundai HiE-S435HG(FB) uses PERC. 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 Hyundai HiE-S440HG(FB) and Hyundai HiE-S435HG(FB)?
Hyundai HiE-S440HG(FB) has a 25 years power warranty; Hyundai HiE-S435HG(FB) has a 25 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.

Shop prices: See 28 Hyundai 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.