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Mono S4 Halfcut BC White 490 vs S4-DG455-96TMax (White) 5 of 18 identical Swap Change panels

Solar-Fabrik Mono S4 Halfcut BC White 490 vs Solar-Fabrik S4-DG455-96TMax (White)

Solar-Fabrik Mono S4 Halfcut BC White 490
Solar-Fabrik
Mono S4 Halfcut BC White 490
490 Wp 24.00 % Back Contact Bifacial Incomplete
Open panel page Datasheet PDF
VS
Solar-Fabrik
S4-DG455-96TMax (White)
455 Wp 22.80 % TOPCon Bifacial Incomplete
Open panel page Datasheet PDF
The verdict

Mono S4 Halfcut BC White 490 leads on the differences that matter

The largest is module efficiency: 1.20 pp more efficient. 5 of 18 comparable parameters are identical, with 1 more left out because at least one datasheet does not publish it.

See all 13 differences
How alike are they
5 of 18 comparable
parameters are identical
identical differs not published
01

What actually differs

13 of 18 parameters
Parameter Mono S4 Halfcut BC White 490 S4-DG455-96TMax (White) Difference
Module efficiency 24.00 % 22.80 % 1.20 pp more efficient
Power density 240.1 Wp/m² 227.7 Wp/m² 12.3 Wp/m² higher
Temperature coefficient -0.260 %/°C -0.290 %/°C 0.030 %/°C better in heat
Rated power 490 Wp 455 Wp 35 W more power
Open-circuit voltage 40.75 V 36.21 V 4.54 V apart
Weight per kWp 51.0 kg/kWp 54.7 kg/kWp 3.7 kg/kWp lighter
Cell technology Back Contact TOPCon Back Contact vs TOPCon
Module area 2.041 m² 1.998 m² 0.043 m² apart
Cell count 108 96 12 cells apart
Voltage at max power 33.72 V 30.28 V 3.44 V apart
Short-circuit current 15.18 A 15.75 A 0.57 A apart
Dimensions 1800x1134x30 mm 1762x1134x30 mm 1800x1134x30 mm vs 1762x1134x30 mm
Current at max power 14.53 A 15.03 A 0.50 A apart
02

What it means on a roof

Thirty years of production
A 1.0% first-year loss then 0.40% a year, assumed for both panels, at 1,200 kWh/kWp a year
Mono S4 Halfcut BC White 490
16,440 kWh
S4-DG455-96TMax (White)
15,266 kWh
Lifetime gap
1,174 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario Mono S4 Halfcut BC White 490 S4-DG455-96TMax (White)
Standard test conditions 25 °C 100.0% of rated power 490 W 455 W
Cool, bright day 40 °C 95.7% of rated power 471 W 435 W
Typical summer roof 55 °C 91.3% of rated power 452 W 415 W
Hot roof 70 °C 87.0% of rated power 433 W 396 W
03

Full specification

Parameter Mono S4 Halfcut BC White 490 S4-DG455-96TMax (White) Difference
Power and efficiency
Rated power 490 Wp 455 Wp +35 W for Mono S4 Halfcut BC White 490
Module efficiency 24.00 % 22.80 % +1.20 pp for Mono S4 Halfcut BC White 490
Power density 240.1 Wp/m² 227.7 Wp/m² +12.3 Wp/m² for Mono S4 Halfcut BC White 490
Open-circuit voltage 40.75 V 36.21 V 4.54 V apart
Voltage at max power 33.72 V 30.28 V 3.44 V apart
Short-circuit current 15.18 A 15.75 A 0.57 A apart
Current at max power 14.53 A 15.03 A 0.50 A apart
Temperature
Temperature coefficient -0.260 %/°C -0.290 %/°C +0.030 %/°C for Mono S4 Halfcut BC White 490
Mechanical
Dimensions 1800x1134x30 mm 1762x1134x30 mm 1800x1134x30 mm vs 1762x1134x30 mm
Module area 2.041 m² 1.998 m² 0.043 m² apart
Weight 25.0 kg 24.9 kg Effectively the same
Weight per kWp 51.0 kg/kWp 54.7 kg/kWp -3.7 kg/kWp for Mono S4 Halfcut BC White 490
Warranty and degradation
Product warranty 30 yrs 30 yrs Same
Performance warranty 30 yrs 30 yrs Same
Annual degradation - - Neither datasheet publishes this
Technology
Cell technology Back Contact TOPCon Back Contact vs TOPCon
Cell type Monocrystalline Monocrystalline Same
Cell count 108 96 12 cells apart
Bifacial Yes Yes Same
04

Against the whole database

14,005 panels
Efficiency
#303 vs #2,714
Mono S4 Halfcut BC White 490 leads by 2,411 places
Power density
#313 vs #2,888
Mono S4 Halfcut BC White 490 leads by 2,575 places
Heat behaviour
#511 vs #2,165
Mono S4 Halfcut BC White 490 leads by 1,654 places
Weight
#4,360 vs #9,129
Mono S4 Halfcut BC White 490 leads by 4,769 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#2,188 vs #4,712
Mono S4 Halfcut BC White 490 leads by 2,524 places
05

More useful comparisons

Open the full database
Same series, other bin
Solar-Fabrik
Solar-Fabrik Mono S4 Halfcut BC White 490 vs Solar-Fabrik Mono S4 Halfcut BC Series White 490W
The same specification on paper
Same series, other bin
Solar-Fabrik
Solar-Fabrik Mono S4 Halfcut BC White 490 vs Solar-Fabrik Mono S4 Halfcut BC White 485
One difference: module efficiency
Same series, other bin
Solar-Fabrik
Solar-Fabrik Mono S4 Halfcut BC White 490 vs Solar-Fabrik Mono S4 Halfcut BC White 480-490W
One difference: module efficiency
Same series, other bin
Solar-Fabrik
Solar-Fabrik Mono S4 Halfcut BC White 490 vs Solar-Fabrik Mono S4 Halfcut BC Series White 485W
One difference: module efficiency
Same series, other bin
Solar-Fabrik
Solar-Fabrik Mono S4 Halfcut BC White 490 vs Solar-Fabrik Mono S4 Halfcut BC White 480
3 differences, the largest is module efficiency
Same series, other bin
Solar-Fabrik
Solar-Fabrik S4-DG455-96TMax (White) vs Solar-Fabrik S4-DG460-96TMax (Full Black)
One difference: module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: Solar-Fabrik Mono S4 Halfcut BC White 490 or Solar-Fabrik S4-DG455-96TMax (White)?
According to our database: Solar-Fabrik Mono S4 Halfcut BC White 490 has higher module efficiency (24.00% vs 22.80%); Solar-Fabrik Mono S4 Halfcut BC White 490 tolerates heat better (temp coeff -0.260%/°C vs -0.290%/°C). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Solar-Fabrik Mono S4 Halfcut BC White 490 and Solar-Fabrik S4-DG455-96TMax (White)?
Solar-Fabrik Mono S4 Halfcut BC White 490 has a module efficiency of 24.00%, while Solar-Fabrik S4-DG455-96TMax (White) is 22.80%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Solar-Fabrik Mono S4 Halfcut BC White 490 use vs Solar-Fabrik S4-DG455-96TMax (White)?
Solar-Fabrik Mono S4 Halfcut BC White 490 uses Back Contact cells; Solar-Fabrik S4-DG455-96TMax (White) 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 Solar-Fabrik Mono S4 Halfcut BC White 490 and Solar-Fabrik S4-DG455-96TMax (White)?
Solar-Fabrik Mono S4 Halfcut BC White 490 has a 30 years power warranty; Solar-Fabrik S4-DG455-96TMax (White) 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 Solar-Fabrik Mono S4 Halfcut BC White 490 and Solar-Fabrik S4-DG455-96TMax (White) bifacial panels?
Both Solar-Fabrik Mono S4 Halfcut BC White 490 and Solar-Fabrik S4-DG455-96TMax (White) 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 19 Solar-Fabrik 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.