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480-490W vs 490 17 of 18 identical Swap Change panels

Solar-Fabrik Mono S4 Halfcut BC White 480-490W vs Solar-Fabrik Mono S4 Halfcut BC White 490

Solar-Fabrik Mono S4 Halfcut BC White 480-490W
Solar-Fabrik
Mono S4 Halfcut BC White 480-490W
485 Wp 23.75 % Back Contact 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

490 leads on the differences that matter

The largest is module efficiency: 0.25 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 480-490W 490 Difference
Module efficiency 23.75 % 24.00 % 0.25 pp more efficient
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.
480-490W
16,273 kWh
490
16,440 kWh
Lifetime gap
167 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario 480-490W 490
Standard test conditions 25 °C 100.0% of rated power 485 W 490 W
Cool, bright day 40 °C 96.1% of rated power 466 W 471 W
Typical summer roof 55 °C 92.2% of rated power 447 W 452 W
Hot roof 70 °C 88.3% of rated power 428 W 433 W
03

Full specification

Parameter 480-490W 490 Difference
Power and efficiency
Rated power 485 Wp 490 Wp Effectively the same
Module efficiency 23.75 % 24.00 % +0.25 pp for 490
Power density 237.6 Wp/m² 240.1 Wp/m² Effectively the same
Open-circuit voltage 40.64 V 40.75 V Effectively the same
Voltage at max power 33.61 V 33.72 V Effectively the same
Short-circuit current 15.08 A 15.18 A Effectively the same
Current at max power 14.43 A 14.53 A Effectively the same
Temperature
Temperature coefficient -0.260 %/°C -0.260 %/°C Same
Mechanical
Dimensions 1800x1134x30 mm 1800x1134x30 mm Same
Module area 2.041 m² 2.041 m² Same
Weight 25.0 kg 25.0 kg Same
Weight per kWp 51.5 kg/kWp 51.0 kg/kWp Effectively the same
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 Back Contact Same
Cell type Monocrystalline Monocrystalline Same
Cell count 108 108 Same
Bifacial Yes Yes Same
04

Against the whole database

14,005 panels
Efficiency
#513 vs #303
490 leads by 210 places
Power density
#495 vs #313
490 leads by 182 places
Heat behaviour
#511 vs #511
Tied - the same position in the database
Weight
#4,932 vs #4,360
490 leads by 572 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#2,601 vs #2,188
490 leads by 413 places
05

More useful comparisons

Open the full database
Same series, other bin
Solar-Fabrik
Solar-Fabrik Mono S4 Halfcut BC White 480-490W 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 480-490W vs Solar-Fabrik Mono S4 Halfcut BC White 485
The same specification on paper
Same series, other bin
Solar-Fabrik
Solar-Fabrik Mono S4 Halfcut BC White 480-490W 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 480-490W vs Solar-Fabrik Mono S4 Halfcut BC White 480
One difference: module efficiency
Same manufacturer
Solar-Fabrik
Solar-Fabrik Mono S4 Halfcut BC White 480-490W vs Solar-Fabrik S4-DG625-132TMax
16 differences, the largest is temperature coefficient
Same manufacturer
Solar-Fabrik
Solar-Fabrik Mono S4 Halfcut BC White 480-490W vs Solar-Fabrik S4-DG620-132TMax
16 differences, the largest is module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: Solar-Fabrik Mono S4 Halfcut BC White 480-490W 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 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 480-490W and Solar-Fabrik Mono S4 Halfcut BC White 490?
Solar-Fabrik Mono S4 Halfcut BC White 480-490 W has a module efficiency of 23.75%, 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 Mono S4 Halfcut BC White 480-490W use vs Solar-Fabrik Mono S4 Halfcut BC White 490?
Solar-Fabrik Mono S4 Halfcut BC White 480-490 W uses Back Contact 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 Mono S4 Halfcut BC White 480-490W and Solar-Fabrik Mono S4 Halfcut BC White 490?
Solar-Fabrik Mono S4 Halfcut BC White 480-490 W has a 30 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 Mono S4 Halfcut BC White 480-490W and Solar-Fabrik Mono S4 Halfcut BC White 490 bifacial panels?
Both Solar-Fabrik Mono S4 Halfcut BC White 480-490 W 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.