DAS Solar DAS-DH120ND-490W vs DAS Solar DAS-DH120NA-490
VS
The verdict
DH120NA-490 leads on the differences that matter
The largest is module efficiency: 1.00 pp more efficient. 8 of 18 comparable parameters are identical, with 1 more left out because at least one datasheet does not publish it.
See all 10 differencesHow alike are they
8
of 18 comparable
parameters are identical
parameters are identical
identical
differs
not published
01
10 of 18 parameters
What actually differs
Parameter
DH120ND-490W
DH120NA-490
Difference
Module efficiency
21.70 %
22.70 %
1.00 pp more efficient
Power density
216.7 Wp/m²
227.1 Wp/m²
10.4 Wp/m² higher
Temperature coefficient
-0.280 %/°C
-0.300 %/°C
0.020 %/°C better in heat
Module area
2.261 m²
2.158 m²
0.103 m² apart
Weight per kWp
56.1 kg/kWp
53.1 kg/kWp
3.1 kg/kWp lighter
Weight
27.5 kg
26.0 kg
1.5 kg lighter
Short-circuit current
14.54 A
14.01 A
0.53 A apart
Dimensions
1994x1134x30 mm
1903x1134x30 mm
1994x1134x30 mm vs 1903x1134x30 mm
Voltage at max power
35.51 V
37.04 V
1.53 V apart
Current at max power
13.80 A
13.23 A
0.57 A apart
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
DH120ND-490W
16,440 kWh
DH120NA-490
16,440 kWh
Lifetime gap
No difference
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
DH120ND-490W
DH120NA-490
Standard test conditions
25 °C
100.0% of rated power
490 W
490 W
Cool, bright day
40 °C
95.5% of rated power
469 W
468 W
Typical summer roof
55 °C
91.0% of rated power
449 W
446 W
Hot roof
70 °C
86.5% of rated power
428 W
424 W
03
Full specification
Parameter
DH120ND-490W
DH120NA-490
Difference
Power and efficiency
Rated power
490 Wp
490 Wp
Same
Module efficiency
21.70 %
22.70 %
+1.00 pp for DH120NA-490
Power density
216.7 Wp/m²
227.1 Wp/m²
+10.4 Wp/m² for DH120NA-490
Open-circuit voltage
42.71 V
43.39 V
Effectively the same
Voltage at max power
35.51 V
37.04 V
1.53 V apart
Short-circuit current
14.54 A
14.01 A
0.53 A apart
Current at max power
13.80 A
13.23 A
0.57 A apart
Temperature
Temperature coefficient
-0.280 %/°C
-0.300 %/°C
+0.020 %/°C for DH120ND-490W
Mechanical
Dimensions
1994x1134x30 mm
1903x1134x30 mm
1994x1134x30 mm vs 1903x1134x30 mm
Module area
2.261 m²
2.158 m²
0.103 m² apart
Weight
27.5 kg
26.0 kg
-1.5 kg for DH120NA-490
Weight per kWp
56.1 kg/kWp
53.1 kg/kWp
-3.1 kg/kWp for DH120NA-490
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
Not published by DAS Solar
Bifacial
Yes
Yes
Same
04
14,005 panels
Against the whole database
Efficiency
#7,421
vs
#3,307
DH120NA-490 leads by 4,114 places
Power density
#7,535
vs
#3,339
DH120NA-490 leads by 4,196 places
Heat behaviour
#1,309
vs
#6,093
DH120ND-490W leads by 4,784 places
Weight
#10,397
vs
#6,818
DH120NA-490 leads by 3,579 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#8,038
vs
#6,727
DH120NA-490 leads by 1,311 places
05
Open the full database
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06
Written summary
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07
Questions about this pairing
Which panel is better: DAS Solar DAS-DH120ND-490W or DAS Solar DAS-DH120NA-490?
According to our database: DAS Solar DAS-DH120NA-490 has higher module efficiency (22.70% vs 21.70%); DAS Solar DAS-DH120ND-490 W tolerates heat better (temp coeff -0.280%/°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 DAS Solar DAS-DH120ND-490W and DAS Solar DAS-DH120NA-490?
DAS Solar DAS-DH120ND-490 W has a module efficiency of 21.70%, 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-DH120ND-490W use vs DAS Solar DAS-DH120NA-490?
DAS Solar DAS-DH120ND-490 W 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-DH120ND-490W and DAS Solar DAS-DH120NA-490?
DAS Solar DAS-DH120ND-490 W 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-DH120ND-490W and DAS Solar DAS-DH120NA-490 bifacial panels?
Both DAS Solar DAS-DH120ND-490 W 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.
Shop prices: See 4 DAS Solar 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.