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485 vs 490 18 of 19 identical Swap Change panels

DAS Solar DAS-DH120NA-485 vs DAS Solar DAS-DH120NA-490

DAS Solar
DAS-DH120NA-485
485 Wp 22.50 % TOPCon Bifacial
Open panel page Datasheet PDF
VS
DAS Solar
DAS-DH120NA-490
490 Wp 22.70 % TOPCon Bifacial
Open panel page Datasheet PDF
The verdict

490 leads on the differences that matter

The largest is module efficiency: 0.20 pp more efficient. 18 of 19 comparable parameters are identical.

See the one difference
How alike are they
18 of 19 comparable
parameters are identical
identical differs
01

What actually differs

1 of 19 parameters
Parameter 485 490 Difference
Module efficiency 22.50 % 22.70 % 0.20 pp more efficient
02

What it means on a roof

Thirty years of production
Each panel's own declared degradation curve, at 1,200 kWh/kWp a year
Same temp coeff. for both panels (-0.300 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
485
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 485 490
Standard test conditions 25 °C 100.0% of rated power 485 W 490 W
Cool, bright day 40 °C 95.5% of rated power 463 W 468 W
Typical summer roof 55 °C 91.0% of rated power 441 W 446 W
Hot roof 70 °C 86.5% of rated power 420 W 424 W
03

Full specification

Parameter 485 490 Difference
Power and efficiency
Rated power 485 Wp 490 Wp Effectively the same
Module efficiency 22.50 % 22.70 % +0.20 pp for 490
Power density 224.7 Wp/m² 227.1 Wp/m² Effectively the same
Open-circuit voltage 43.18 V 43.39 V Effectively the same
Voltage at max power 36.75 V 37.04 V Effectively the same
Short-circuit current 13.95 A 14.01 A Effectively the same
Current at max power 13.20 A 13.23 A Effectively the same
Temperature
Temperature coefficient -0.300 %/°C -0.300 %/°C Same
Mechanical
Dimensions 1903x1134x30 mm 1903x1134x30 mm Same
Module area 2.158 m² 2.158 m² Same
Weight 26.0 kg 26.0 kg Same
Weight per kWp 53.6 kg/kWp 53.1 kg/kWp Effectively the same
Warranty and degradation
Product warranty 15 yrs 15 yrs Same
Performance warranty 30 yrs 30 yrs Same
Annual degradation 0.40 %/yr 0.40 %/yr Same
Technology
Cell technology TOPCon TOPCon Same
Cell type Monocrystalline Monocrystalline Same
Cell count 120 120 Same
Bifacial Yes Yes Same
04

Against the whole database

14,005 panels
Efficiency
#4,222 vs #3,307
490 leads by 915 places
Power density
#4,501 vs #3,339
490 leads by 1,162 places
Heat behaviour
#6,093 vs #6,093
Tied - the same position in the database
Weight
#7,617 vs #6,818
490 leads by 799 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#7,185 vs #6,727
490 leads by 458 places
05

More useful comparisons

Open the full database
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DAS Solar DAS-DH120NA-485 vs DAS Solar DAS-DH120ND-515W
9 differences, the largest is rated power
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DAS Solar DAS-DH120NA-485 vs DAS Solar DAS-DH120ND-510W
7 differences, the largest is rated power
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DAS Solar
DAS Solar DAS-DH120NA-485 vs DAS Solar DAS-DH120ND-505W
8 differences, the largest is temperature coefficient
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DAS Solar
DAS Solar DAS-DH120NA-485 vs DAS Solar DAS-DH120ND-500W
9 differences, the largest is temperature coefficient
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DAS Solar
DAS Solar DAS-DH120NA-485 vs DAS Solar DAS-DH120ND-495W
10 differences, the largest is module efficiency
Same series, other bin
DAS Solar
DAS Solar DAS-DH120NA-485 vs DAS Solar DAS-DH120ND-490W
10 differences, the largest is module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: DAS Solar DAS-DH120NA-485 or DAS Solar DAS-DH120NA-490?
According to our database: DAS Solar DAS-DH120NA-490 has higher module efficiency (22.70% vs 22.50%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of DAS Solar DAS-DH120NA-485 and DAS Solar DAS-DH120NA-490?
DAS Solar DAS-DH120NA-485 has a module efficiency of 22.50%, while DAS Solar DAS-DH120NA-490 is 22.70%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does DAS Solar DAS-DH120NA-485 use vs DAS Solar DAS-DH120NA-490?
DAS Solar DAS-DH120NA-485 uses TOPCon cells; DAS Solar DAS-DH120NA-490 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 DAS Solar DAS-DH120NA-485 and DAS Solar DAS-DH120NA-490?
DAS Solar DAS-DH120NA-485 has a 30 years power warranty; DAS Solar DAS-DH120NA-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 DAS Solar DAS-DH120NA-485 and DAS Solar DAS-DH120NA-490 bifacial panels?
Both DAS Solar DAS-DH120NA-485 and DAS Solar DAS-DH120NA-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.

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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.