Halfcut BC Series White 490W vs Quartercut Premium DE Series 485W 7 of 17 identical Swap Change panels

Solar-Fabrik Mono S4 Halfcut BC Series White 490W vs Solar-Fabrik Mono S4 Quartercut Premium DE Series 485W

Q: What is the efficiency of Solar-Fabrik Mono S4 Halfcut BC Series White 490W and Solar-Fabrik Mono S4 Quartercut Premium DE Series 485W?

Solar-Fabrik Mono S4 Halfcut BC Series White 490W has a module efficiency of 24.00%, while Solar-Fabrik Mono S4 Quartercut Premium DE Series 485W is 24.27%. Higher efficiency means more electricity from the same roof area - useful when space is limited.

Q: What cell technology does Solar-Fabrik Mono S4 Halfcut BC Series White 490W use vs Solar-Fabrik Mono S4 Quartercut Premium DE Series 485W?

Solar-Fabrik Mono S4 Halfcut BC Series White 490W uses Back Contact cells; Solar-Fabrik Mono S4 Quartercut Premium DE Series 485W uses TOPCon. Modern n-type technologies (TOPCon, HJT, BC) typically deliver higher efficiency and lower degradation compared to older PERC (p-type) cells.

Q: What is the warranty on Solar-Fabrik Mono S4 Halfcut BC Series White 490W and Solar-Fabrik Mono S4 Quartercut Premium DE Series 485W?

Solar-Fabrik Mono S4 Halfcut BC Series White 490W has a 30 years power warranty; Solar-Fabrik Mono S4 Quartercut Premium DE Series 485W 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.

Q: Are Solar-Fabrik Mono S4 Halfcut BC Series White 490W and Solar-Fabrik Mono S4 Quartercut Premium DE Series 485W bifacial panels?

Both Solar-Fabrik Mono S4 Halfcut BC Series White 490W and Solar-Fabrik Mono S4 Quartercut Premium DE Series 485W 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.

Solar-Fabrik

Mono S4 Halfcut BC Series White 490W

490 Wp 24.00 % Back Contact Bifacial Incomplete

Open panel page Datasheet PDF

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 open-circuit voltage: 3.67 V apart. 7 of 17 comparable parameters are identical, with 2 more left out because at least one datasheet does not publish them.

See all 10 differences

How alike are they

7 of 17 comparable
parameters are identical

identical differs not published

What actually differs

10 of 17 parameters

Parameter Halfcut BC Series White 490W Quartercut Premium DE Series 485W Difference

Open-circuit voltage 40.75 V 37.08 V 3.67 V apart

Module efficiency 24.00 % 24.27 % 0.27 pp more efficient

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 15.18 A 16.03 A 0.85 A apart

Weight 25.0 kg 24.0 kg 1.0 kg lighter

Voltage at max power 33.73 V 31.29 V 2.44 V apart

Dimensions 1800x1134x30 mm 1762x1134x30 mm 1800x1134x30 mm vs 1762x1134x30 mm

Current at max power 14.53 A 15.50 A 0.97 A apart

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

Projected at 25 °C. Not published by Solar-Fabrik, so a hotter case cannot be shown without inventing one side of it.

Halfcut BC Series White 490W

16,440 kWh

Quartercut Premium DE Series 485W

16,273 kWh

Lifetime gap

167 kWh

Output when it is hot

Rated power carried across the range a module actually sees

Scenario Halfcut BC Series White 490W Quartercut Premium DE Series 485W

Standard test conditions 25 °C 100.0% of rated power - 485 W

Cool, bright day 40 °C 96.1% of rated power - 466 W

Typical summer roof 55 °C 92.2% of rated power - 447 W

Hot roof 70 °C 88.3% of rated power - 428 W

Full specification

Parameter Halfcut BC Series White 490W Quartercut Premium DE Series 485W Difference

Power and efficiency

Rated power 490 Wp 485 Wp Effectively the same

Module efficiency 24.00 % 24.27 % +0.27 pp for Quartercut Premium DE Series 485W

Power density 240.1 Wp/m² 242.7 Wp/m² Effectively the same

Open-circuit voltage 40.75 V 37.08 V 3.67 V apart

Voltage at max power 33.73 V 31.29 V 2.44 V apart

Short-circuit current 15.18 A 16.03 A 0.85 A apart

Current at max power 14.53 A 15.50 A 0.97 A apart

Temperature

Temperature coefficient - -0.260 %/°C Not published by Solar-Fabrik

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 51.0 kg/kWp 49.5 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 TOPCon Back Contact vs TOPCon

Cell type Monocrystalline Monocrystalline Same

Cell count 108 192 84 cells apart

Bifacial Yes Yes Same

Against the whole database

14,005 panels

Efficiency

#303 vs #164

Quartercut Premium DE Series 485W leads by 139 places

Power density

#313 vs #140

Quartercut Premium DE Series 485W leads by 173 places

Heat behaviour

#13,924 vs #511

Quartercut Premium DE Series 485W leads by 13,413 places

Weight

#4,360 vs #3,021

Quartercut Premium DE Series 485W leads by 1,339 places

Warranty

#21 vs #21

Tied - the same position in the database

Overall

#2,188 vs #2,094

Quartercut Premium DE Series 485W leads by 94 places

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Written summary

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Questions about this pairing

Which panel is better: Solar-Fabrik Mono S4 Halfcut BC Series White 490W 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 24.00%). 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 Series White 490W and Solar-Fabrik Mono S4 Quartercut Premium DE Series 485W?

Solar-Fabrik Mono S4 Halfcut BC Series White 490 W has a module efficiency of 24.00%, 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 Series White 490W use vs Solar-Fabrik Mono S4 Quartercut Premium DE Series 485W?

Solar-Fabrik Mono S4 Halfcut BC Series White 490 W 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 Series White 490W and Solar-Fabrik Mono S4 Quartercut Premium DE Series 485W?

Solar-Fabrik Mono S4 Halfcut BC Series White 490 W 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 Series White 490W and Solar-Fabrik Mono S4 Quartercut Premium DE Series 485W bifacial panels?

Both Solar-Fabrik Mono S4 Halfcut BC Series White 490 W 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.

Shop prices: See 13 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.