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Mono S4 Halfcut BC Full Black 475W vs S4-DG620-132TMax 3 of 18 identical Swap Change panels

Solar-Fabrik Mono S4 Halfcut BC Full Black 475W vs Solar-Fabrik S4-DG620-132TMax

Solar-Fabrik
Mono S4 Halfcut BC Full Black 475W
475 Wp 23.30 % Back Contact Bifacial Incomplete
Open panel page Datasheet PDF
VS
Solar-Fabrik
S4-DG620-132TMax
620 Wp 22.95 % TOPCon Bifacial Incomplete
Open panel page Datasheet PDF
The verdict

Mono S4 Halfcut BC Full Black 475W leads on the differences that matter

The largest is temperature coefficient: 0.040 %/°C better in heat. 3 of 18 comparable parameters are identical, with 1 more left out because at least one datasheet does not publish it.

See all 15 differences
How alike are they
3 of 18 comparable
parameters are identical
identical differs not published
01

What actually differs

15 of 18 parameters
Parameter Mono S4 Halfcut BC Full Black 475W S4-DG620-132TMax Difference
Temperature coefficient -0.260 %/°C -0.300 %/°C 0.040 %/°C better in heat
Rated power 475 Wp 620 Wp 145 W more power
Performance warranty 30 yrs 25 yrs 5 yrs longer
Weight 25.0 kg 33.6 kg 8.6 kg lighter
Product warranty 30 yrs 15 yrs 15 yrs longer
Module efficiency 23.30 % 22.95 % 0.35 pp more efficient
Open-circuit voltage 40.42 V 49.10 V 8.68 V apart
Module area 2.041 m² 2.701 m² 0.660 m² apart
Cell technology Back Contact TOPCon Back Contact vs TOPCon
Short-circuit current 14.88 A 15.95 A 1.07 A apart
Power density 232.7 Wp/m² 229.5 Wp/m² 3.2 Wp/m² higher
Voltage at max power 33.38 V 41.32 V 7.94 V apart
Cell count 108 132 24 cells apart
Dimensions 1800x1134x30 mm 2382x1134x30 mm 1800x1134x30 mm vs 2382x1134x30 mm
Current at max power 14.23 A 15.02 A 0.79 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 Full Black 475W
15,937 kWh
S4-DG620-132TMax
20,802 kWh
Lifetime gap
4,865 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario Mono S4 Halfcut BC Full Black 475W S4-DG620-132TMax
Standard test conditions 25 °C 100.0% of rated power 475 W 620 W
Cool, bright day 40 °C 95.5% of rated power 456 W 592 W
Typical summer roof 55 °C 91.0% of rated power 438 W 564 W
Hot roof 70 °C 86.5% of rated power 419 W 536 W
03

Full specification

Parameter Mono S4 Halfcut BC Full Black 475W S4-DG620-132TMax Difference
Power and efficiency
Rated power 475 Wp 620 Wp +145 W for S4-DG620-132TMax
Module efficiency 23.30 % 22.95 % +0.35 pp for Mono S4 Halfcut BC Full Black 475W
Power density 232.7 Wp/m² 229.5 Wp/m² +3.2 Wp/m² for Mono S4 Halfcut BC Full Black 475W
Open-circuit voltage 40.42 V 49.10 V 8.68 V apart
Voltage at max power 33.38 V 41.32 V 7.94 V apart
Short-circuit current 14.88 A 15.95 A 1.07 A apart
Current at max power 14.23 A 15.02 A 0.79 A apart
Temperature
Temperature coefficient -0.260 %/°C -0.300 %/°C +0.040 %/°C for Mono S4 Halfcut BC Full Black 475W
Mechanical
Dimensions 1800x1134x30 mm 2382x1134x30 mm 1800x1134x30 mm vs 2382x1134x30 mm
Module area 2.041 m² 2.701 m² 0.660 m² apart
Weight 25.0 kg 33.6 kg -8.6 kg for Mono S4 Halfcut BC Full Black 475W
Weight per kWp 52.6 kg/kWp 54.2 kg/kWp Effectively the same
Warranty and degradation
Product warranty 30 yrs 15 yrs +15 yrs for Mono S4 Halfcut BC Full Black 475W
Performance warranty 30 yrs 25 yrs +5 yrs for Mono S4 Halfcut BC Full Black 475W
Annual degradation - - Neither datasheet publishes this
Technology
Cell technology Back Contact TOPCon Back Contact vs TOPCon
Cell type Monocrystalline Monocrystalline Same
Cell count 108 132 24 cells apart
Bifacial Yes Yes Same
04

Against the whole database

14,005 panels
Efficiency
#1,017 vs #2,268
Mono S4 Halfcut BC Full Black 475W leads by 1,251 places
Power density
#1,189 vs #2,191
Mono S4 Halfcut BC Full Black 475W leads by 1,002 places
Heat behaviour
#511 vs #6,093
Mono S4 Halfcut BC Full Black 475W leads by 5,582 places
Weight
#6,259 vs #8,420
Mono S4 Halfcut BC Full Black 475W leads by 2,161 places
Warranty
#21 vs #9,798
Mono S4 Halfcut BC Full Black 475W leads by 9,777 places
Overall
#3,428 vs #2,976
S4-DG620-132TMax leads by 452 places
05

More useful comparisons

Open the full database
Same series, other bin
Solar-Fabrik
Solar-Fabrik Mono S4 Halfcut BC Full Black 475W vs Solar-Fabrik Mono S4 Halfcut BC Full Black 480W
One difference: module efficiency
Same series, other bin
Solar-Fabrik
Solar-Fabrik Mono S4 Halfcut BC Full Black 475W vs Solar-Fabrik Mono S4 Halfcut BC Series Full Black 480W
One difference: module efficiency
Same series, other bin
Solar-Fabrik
Solar-Fabrik Mono S4 Halfcut BC Full Black 475W vs Solar-Fabrik Mono S4 Halfcut BC Series Full Black 475W
The same specification on paper
Same series, other bin
Solar-Fabrik
Solar-Fabrik S4-DG620-132TMax vs Solar-Fabrik S4-DG625-132TMax
The same specification on paper
Same manufacturer
Solar-Fabrik
Solar-Fabrik Mono S4 Halfcut BC Full Black 475W vs Solar-Fabrik Mono S4 Halfcut BC White 490
3 differences, the largest is module efficiency
Same manufacturer
Solar-Fabrik
Solar-Fabrik Mono S4 Halfcut BC Full Black 475W vs Solar-Fabrik Mono S4 Halfcut BC Series White 490W
3 differences, the largest is module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: Solar-Fabrik Mono S4 Halfcut BC Full Black 475W or Solar-Fabrik S4-DG620-132TMax?
According to our database: Solar-Fabrik Mono S4 Halfcut BC Full Black 475 W has higher module efficiency (23.30% vs 22.95%); Solar-Fabrik Mono S4 Halfcut BC Full Black 475 W tolerates heat better (temp coeff -0.260%/°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 Solar-Fabrik Mono S4 Halfcut BC Full Black 475W and Solar-Fabrik S4-DG620-132TMax?
Solar-Fabrik Mono S4 Halfcut BC Full Black 475 W has a module efficiency of 23.30%, while Solar-Fabrik S4-DG620-132TMax is 22.95%. 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 Full Black 475W use vs Solar-Fabrik S4-DG620-132TMax?
Solar-Fabrik Mono S4 Halfcut BC Full Black 475 W uses Back Contact cells; Solar-Fabrik S4-DG620-132TMax 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 Full Black 475W and Solar-Fabrik S4-DG620-132TMax?
Solar-Fabrik Mono S4 Halfcut BC Full Black 475 W has a 30 years power warranty; Solar-Fabrik S4-DG620-132TMax 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.
Are Solar-Fabrik Mono S4 Halfcut BC Full Black 475W and Solar-Fabrik S4-DG620-132TMax bifacial panels?
Both Solar-Fabrik Mono S4 Halfcut BC Full Black 475 W and Solar-Fabrik S4-DG620-132TMax 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.