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Halfcut BC White 485 vs Quartercut Premium DE Series 485W 6 of 18 identical Swap Change panels

Solar-Fabrik Mono S4 Halfcut BC White 485 vs Solar-Fabrik Mono S4 Quartercut Premium DE Series 485W

Solar-Fabrik Mono S4 Halfcut BC White 485
Solar-Fabrik
Mono S4 Halfcut BC White 485
485 Wp 23.75 % Back Contact Bifacial Incomplete
Open panel page Datasheet PDF
VS
Solar-Fabrik
Mono S4 Quartercut Premium DE Series 485W
485 Wp 24.27 % TOPCon Bifacial Incomplete
Open panel page Datasheet PDF
The verdict

Quartercut Premium DE Series 485W leads on the differences that matter

The largest is module efficiency: 0.52 pp more efficient. 6 of 18 comparable parameters are identical, with 1 more left out because at least one datasheet does not publish it.

See all 12 differences
How alike are they
6 of 18 comparable
parameters are identical
identical differs not published
01

What actually differs

12 of 18 parameters
Parameter Halfcut BC White 485 Quartercut Premium DE Series 485W Difference
Module efficiency 23.75 % 24.27 % 0.52 pp more efficient
Open-circuit voltage 40.64 V 37.08 V 3.56 V apart
Power density 237.6 Wp/m² 242.7 Wp/m² 5.1 Wp/m² higher
Cell technology Back Contact TOPCon Back Contact vs TOPCon
Module area 2.041 m² 1.998 m² 0.043 m² apart
Cell count 108 192 84 cells apart
Short-circuit current 15.08 A 16.03 A 0.95 A apart
Weight per kWp 51.5 kg/kWp 49.5 kg/kWp 2.1 kg/kWp lighter
Weight 25.0 kg 24.0 kg 1.0 kg lighter
Voltage at max power 33.61 V 31.29 V 2.32 V apart
Current at max power 14.43 A 15.50 A 1.07 A apart
Dimensions 1800x1134x30 mm 1762x1134x30 mm 1800x1134x30 mm vs 1762x1134x30 mm
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
Same temp coeff. for both panels (-0.260 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
Halfcut BC White 485
16,273 kWh
Quartercut Premium DE Series 485W
16,273 kWh
Lifetime gap
No difference
Output when it is hot
Rated power carried across the range a module actually sees
Scenario Halfcut BC White 485 Quartercut Premium DE Series 485W
Standard test conditions 25 °C 100.0% of rated power 485 W 485 W
Cool, bright day 40 °C 96.1% of rated power 466 W 466 W
Typical summer roof 55 °C 92.2% of rated power 447 W 447 W
Hot roof 70 °C 88.3% of rated power 428 W 428 W
03

Full specification

Parameter Halfcut BC White 485 Quartercut Premium DE Series 485W Difference
Power and efficiency
Rated power 485 Wp 485 Wp Same
Module efficiency 23.75 % 24.27 % +0.52 pp for Quartercut Premium DE Series 485W
Power density 237.6 Wp/m² 242.7 Wp/m² +5.1 Wp/m² for Quartercut Premium DE Series 485W
Open-circuit voltage 40.64 V 37.08 V 3.56 V apart
Voltage at max power 33.61 V 31.29 V 2.32 V apart
Short-circuit current 15.08 A 16.03 A 0.95 A apart
Current at max power 14.43 A 15.50 A 1.07 A apart
Temperature
Temperature coefficient -0.260 %/°C -0.260 %/°C Same
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 24.0 kg -1.0 kg for Quartercut Premium DE Series 485W
Weight per kWp 51.5 kg/kWp 49.5 kg/kWp -2.1 kg/kWp for Quartercut Premium DE Series 485W
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 108 192 84 cells apart
Bifacial Yes Yes Same
04

Against the whole database

14,005 panels
Efficiency
#513 vs #164
Quartercut Premium DE Series 485W leads by 349 places
Power density
#495 vs #140
Quartercut Premium DE Series 485W leads by 355 places
Heat behaviour
#511 vs #511
Tied - the same position in the database
Weight
#4,932 vs #3,021
Quartercut Premium DE Series 485W leads by 1,911 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#2,601 vs #2,094
Quartercut Premium DE Series 485W leads by 507 places
05

More useful comparisons

Open the full database
Same series, other bin
Solar-Fabrik
Solar-Fabrik Mono S4 Halfcut BC White 485 vs Solar-Fabrik Mono S4 Halfcut BC White 490
One difference: module efficiency
Same series, other bin
Solar-Fabrik
Solar-Fabrik Mono S4 Halfcut BC White 485 vs Solar-Fabrik Mono S4 Halfcut BC Series White 490W
One difference: module efficiency
Same series, other bin
Solar-Fabrik
Solar-Fabrik Mono S4 Halfcut BC White 485 vs Solar-Fabrik Mono S4 Halfcut BC White 480-490W
The same specification on paper
Same series, other bin
Solar-Fabrik
Solar-Fabrik Mono S4 Halfcut BC White 485 vs Solar-Fabrik Mono S4 Halfcut BC Series White 485W
The same specification on paper
Same series, other bin
Solar-Fabrik
Solar-Fabrik Mono S4 Halfcut BC White 485 vs Solar-Fabrik Mono S4 Halfcut BC White 480
One difference: module efficiency
Same series, other bin
Solar-Fabrik
Solar-Fabrik Mono S4 Quartercut Premium DE Series 485W vs Solar-Fabrik Mono S4 Quartercut Premium DE Series 480W
One difference: module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: Solar-Fabrik Mono S4 Halfcut BC White 485 or Solar-Fabrik Mono S4 Quartercut Premium DE Series 485W?
According to our database: Solar-Fabrik Mono S4 Quartercut Premium DE Series 485 W has higher module efficiency (24.27% vs 23.75%). 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 485 and Solar-Fabrik Mono S4 Quartercut Premium DE Series 485W?
Solar-Fabrik Mono S4 Halfcut BC White 485 has a module efficiency of 23.75%, while Solar-Fabrik Mono S4 Quartercut Premium DE Series 485 W is 24.27%. 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 485 use vs Solar-Fabrik Mono S4 Quartercut Premium DE Series 485W?
Solar-Fabrik Mono S4 Halfcut BC White 485 uses Back Contact cells; Solar-Fabrik Mono S4 Quartercut Premium DE Series 485 W 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 485 and Solar-Fabrik Mono S4 Quartercut Premium DE Series 485W?
Solar-Fabrik Mono S4 Halfcut BC White 485 has a 30 years power warranty; Solar-Fabrik Mono S4 Quartercut Premium DE Series 485 W 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 485 and Solar-Fabrik Mono S4 Quartercut Premium DE Series 485W bifacial panels?
Both Solar-Fabrik Mono S4 Halfcut BC White 485 and Solar-Fabrik Mono S4 Quartercut Premium DE Series 485 W 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.

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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.