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S4-DG620-132TMax vs Mono S4 Halfcut BC White 490 3 of 18 identical Swap Change panels

Solar-Fabrik S4-DG620-132TMax vs Solar-Fabrik Mono S4 Halfcut BC White 490

Solar-Fabrik
S4-DG620-132TMax
620 Wp 22.95 % TOPCon Bifacial Incomplete
Open panel page Datasheet PDF
VS
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
The verdict

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

The largest is module efficiency: 1.05 pp more efficient. 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 S4-DG620-132TMax Mono S4 Halfcut BC White 490 Difference
Module efficiency 22.95 % 24.00 % 1.05 pp more efficient
Temperature coefficient -0.300 %/°C -0.260 %/°C 0.040 %/°C better in heat
Rated power 620 Wp 490 Wp 130 W more power
Performance warranty 25 yrs 30 yrs 5 yrs longer
Power density 229.5 Wp/m² 240.1 Wp/m² 10.5 Wp/m² higher
Weight 33.6 kg 25.0 kg 8.6 kg lighter
Product warranty 15 yrs 30 yrs 15 yrs longer
Open-circuit voltage 49.10 V 40.75 V 8.35 V apart
Module area 2.701 m² 2.041 m² 0.660 m² apart
Cell technology TOPCon Back Contact TOPCon vs Back Contact
Weight per kWp 54.2 kg/kWp 51.0 kg/kWp 3.2 kg/kWp lighter
Voltage at max power 41.32 V 33.72 V 7.60 V apart
Cell count 132 108 24 cells apart
Short-circuit current 15.95 A 15.18 A 0.77 A apart
Dimensions 2382x1134x30 mm 1800x1134x30 mm 2382x1134x30 mm vs 1800x1134x30 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
S4-DG620-132TMax
20,802 kWh
Mono S4 Halfcut BC White 490
16,440 kWh
Lifetime gap
4,362 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario S4-DG620-132TMax Mono S4 Halfcut BC White 490
Standard test conditions 25 °C 100.0% of rated power 620 W 490 W
Cool, bright day 40 °C 95.5% of rated power 592 W 471 W
Typical summer roof 55 °C 91.0% of rated power 564 W 452 W
Hot roof 70 °C 86.5% of rated power 536 W 433 W
03

Full specification

Parameter S4-DG620-132TMax Mono S4 Halfcut BC White 490 Difference
Power and efficiency
Rated power 620 Wp 490 Wp +130 W for S4-DG620-132TMax
Module efficiency 22.95 % 24.00 % +1.05 pp for Mono S4 Halfcut BC White 490
Power density 229.5 Wp/m² 240.1 Wp/m² +10.5 Wp/m² for Mono S4 Halfcut BC White 490
Open-circuit voltage 49.10 V 40.75 V 8.35 V apart
Voltage at max power 41.32 V 33.72 V 7.60 V apart
Short-circuit current 15.95 A 15.18 A 0.77 A apart
Current at max power 15.02 A 14.53 A Effectively the same
Temperature
Temperature coefficient -0.300 %/°C -0.260 %/°C +0.040 %/°C for Mono S4 Halfcut BC White 490
Mechanical
Dimensions 2382x1134x30 mm 1800x1134x30 mm 2382x1134x30 mm vs 1800x1134x30 mm
Module area 2.701 m² 2.041 m² 0.660 m² apart
Weight 33.6 kg 25.0 kg -8.6 kg for Mono S4 Halfcut BC White 490
Weight per kWp 54.2 kg/kWp 51.0 kg/kWp -3.2 kg/kWp for Mono S4 Halfcut BC White 490
Warranty and degradation
Product warranty 15 yrs 30 yrs +15 yrs for Mono S4 Halfcut BC White 490
Performance warranty 25 yrs 30 yrs +5 yrs for Mono S4 Halfcut BC White 490
Annual degradation - - Neither datasheet publishes this
Technology
Cell technology TOPCon Back Contact TOPCon vs Back Contact
Cell type Monocrystalline Monocrystalline Same
Cell count 132 108 24 cells apart
Bifacial Yes Yes Same
04

Against the whole database

14,005 panels
Efficiency
#2,268 vs #303
Mono S4 Halfcut BC White 490 leads by 1,965 places
Power density
#2,191 vs #313
Mono S4 Halfcut BC White 490 leads by 1,878 places
Heat behaviour
#6,093 vs #511
Mono S4 Halfcut BC White 490 leads by 5,582 places
Weight
#8,420 vs #4,360
Mono S4 Halfcut BC White 490 leads by 4,060 places
Warranty
#9,798 vs #21
Mono S4 Halfcut BC White 490 leads by 9,777 places
Overall
#2,976 vs #2,188
Mono S4 Halfcut BC White 490 leads by 788 places
05

More useful comparisons

Open the full database
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Solar-Fabrik
Solar-Fabrik S4-DG620-132TMax vs Solar-Fabrik S4-DG625-132TMax
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Solar-Fabrik Mono S4 Halfcut BC White 490 vs Solar-Fabrik Mono S4 Halfcut BC Series White 490W
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Solar-Fabrik Mono S4 Halfcut BC White 490 vs Solar-Fabrik Mono S4 Halfcut BC White 485
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Solar-Fabrik Mono S4 Halfcut BC White 490 vs Solar-Fabrik Mono S4 Halfcut BC White 480-490W
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Solar-Fabrik Mono S4 Halfcut BC White 490 vs Solar-Fabrik Mono S4 Halfcut BC Series White 485W
One difference: module efficiency
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Solar-Fabrik Mono S4 Halfcut BC White 490 vs Solar-Fabrik Mono S4 Halfcut BC White 480
3 differences, the largest is module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: Solar-Fabrik S4-DG620-132TMax or Solar-Fabrik Mono S4 Halfcut BC White 490?
According to our database: Solar-Fabrik Mono S4 Halfcut BC White 490 has higher module efficiency (24.00% vs 22.95%); Solar-Fabrik Mono S4 Halfcut BC White 490 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 S4-DG620-132TMax and Solar-Fabrik Mono S4 Halfcut BC White 490?
Solar-Fabrik S4-DG620-132TMax has a module efficiency of 22.95%, while Solar-Fabrik Mono S4 Halfcut BC White 490 is 24.00%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Solar-Fabrik S4-DG620-132TMax use vs Solar-Fabrik Mono S4 Halfcut BC White 490?
Solar-Fabrik S4-DG620-132TMax uses TOPCon cells; Solar-Fabrik Mono S4 Halfcut BC White 490 uses Back Contact. 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 S4-DG620-132TMax and Solar-Fabrik Mono S4 Halfcut BC White 490?
Solar-Fabrik S4-DG620-132TMax has a 25 years power warranty; Solar-Fabrik Mono S4 Halfcut BC White 490 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 S4-DG620-132TMax and Solar-Fabrik Mono S4 Halfcut BC White 490 bifacial panels?
Both Solar-Fabrik S4-DG620-132TMax and Solar-Fabrik Mono S4 Halfcut BC White 490 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.