DH120ND-495W vs DH120NA-490 8 of 18 identical Swap Change panels

DAS Solar DAS-DH120ND-495W vs DAS Solar DAS-DH120NA-490

Q: Which panel is better: DAS Solar DAS-DH120ND-495W or DAS Solar DAS-DH120NA-490?

According to our database: DAS Solar DAS-DH120NA-490 has higher module efficiency (22.70% vs 21.90%); DAS Solar DAS-DH120ND-495W 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.

Q: What is the efficiency of DAS Solar DAS-DH120ND-495W and DAS Solar DAS-DH120NA-490?

DAS Solar DAS-DH120ND-495W has a module efficiency of 21.90%, while DAS Solar DAS-DH120NA-490 is 22.70%. Higher efficiency means more electricity from the same roof area - useful when space is limited.

Q: What cell technology does DAS Solar DAS-DH120ND-495W use vs DAS Solar DAS-DH120NA-490?

DAS Solar DAS-DH120ND-495W 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.

Q: What is the warranty on DAS Solar DAS-DH120ND-495W and DAS Solar DAS-DH120NA-490?

DAS Solar DAS-DH120ND-495W 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.

Q: Are DAS Solar DAS-DH120ND-495W and DAS Solar DAS-DH120NA-490 bifacial panels?

Both DAS Solar DAS-DH120ND-495W 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.

DAS Solar

DAS-DH120ND-495W

495 Wp 21.90 % TOPCon Bifacial

Open panel page Datasheet PDF

DAS Solar

DAS-DH120NA-490

490 Wp 22.70 % TOPCon Bifacial

Open panel page Datasheet PDF

The verdict

DH120NA-490 leads on the differences that matter

The largest is module efficiency: 0.80 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 differences

How alike are they

8 of 18 comparable
parameters are identical

identical differs not published

What actually differs

10 of 18 parameters

Parameter DH120ND-495W DH120NA-490 Difference

Module efficiency 21.90 % 22.70 % 0.80 pp more efficient

Power density 218.9 Wp/m² 227.1 Wp/m² 8.2 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 27.5 kg 26.0 kg 1.5 kg lighter

Weight per kWp 55.6 kg/kWp 53.1 kg/kWp 2.5 kg/kWp lighter

Short-circuit current 14.60 A 14.01 A 0.59 A apart

Dimensions 1994x1134x30 mm 1903x1134x30 mm 1994x1134x30 mm vs 1903x1134x30 mm

Voltage at max power 35.72 V 37.04 V 1.32 V apart

Current at max power 13.86 A 13.23 A 0.63 A apart

What it means on a roof

Thirty years of production

Each panel's own declared degradation curve, at 1,200 kWh/kWp a year

Cell temperature

DH120ND-495W

16,608 kWh

DH120NA-490

16,440 kWh

Lifetime gap

168 kWh

Output when it is hot

Rated power carried across the range a module actually sees

Scenario DH120ND-495W DH120NA-490

Standard test conditions 25 °C 100.0% of rated power 495 W 490 W

Cool, bright day 40 °C 95.5% of rated power 474 W 468 W

Typical summer roof 55 °C 91.0% of rated power 453 W 446 W

Hot roof 70 °C 86.5% of rated power 433 W 424 W

Full specification

Parameter DH120ND-495W DH120NA-490 Difference

Power and efficiency

Rated power 495 Wp 490 Wp Effectively the same

Module efficiency 21.90 % 22.70 % +0.80 pp for DH120NA-490

Power density 218.9 Wp/m² 227.1 Wp/m² +8.2 Wp/m² for DH120NA-490

Open-circuit voltage 42.91 V 43.39 V Effectively the same

Voltage at max power 35.72 V 37.04 V 1.32 V apart

Short-circuit current 14.60 A 14.01 A 0.59 A apart

Current at max power 13.86 A 13.23 A 0.63 A apart

Temperature

Temperature coefficient -0.280 %/°C -0.300 %/°C +0.020 %/°C for DH120ND-495W

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 55.6 kg/kWp 53.1 kg/kWp -2.5 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

Against the whole database

14,005 panels

Efficiency

#6,783 vs #3,307

DH120NA-490 leads by 3,476 places

Power density

#6,793 vs #3,339

DH120NA-490 leads by 3,454 places

Heat behaviour

#1,309 vs #6,093

DH120ND-495W leads by 4,784 places

Weight

#9,909 vs #6,818

DH120NA-490 leads by 3,091 places

Warranty

#21 vs #21

Tied - the same position in the database

Overall

#7,591 vs #6,727

DH120NA-490 leads by 864 places

More useful comparisons

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DAS Solar DAS-DH120ND-495W vs DAS Solar DAS-DH120NA-485

10 differences, the largest is module efficiency

Written summary

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Questions about this pairing

Which panel is better: DAS Solar DAS-DH120ND-495W or DAS Solar DAS-DH120NA-490?

According to our database: DAS Solar DAS-DH120NA-490 has higher module efficiency (22.70% vs 21.90%); DAS Solar DAS-DH120ND-495 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-495W and DAS Solar DAS-DH120NA-490?

DAS Solar DAS-DH120ND-495 W has a module efficiency of 21.90%, 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-495W use vs DAS Solar DAS-DH120NA-490?

DAS Solar DAS-DH120ND-495 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-495W and DAS Solar DAS-DH120NA-490?

DAS Solar DAS-DH120ND-495 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-495W and DAS Solar DAS-DH120NA-490 bifacial panels?

Both DAS Solar DAS-DH120ND-495 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.