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450 vs 440 16 of 19 identical Swap Change panels

DAS Solar DAS-DH108ND-450 vs DAS Solar DAS-DH108ND-440

DAS Solar
DAS-DH108ND-450
450 Wp 22.00 % TOPCon Bifacial
Open panel page Datasheet PDF
VS
DAS Solar
DAS-DH108ND-440
440 Wp 21.60 % TOPCon Bifacial
Open panel page Datasheet PDF
The verdict

450 leads on the differences that matter

The largest is module efficiency: 0.40 pp more efficient. 16 of 19 comparable parameters are identical.

See all 3 differences
How alike are they
16 of 19 comparable
parameters are identical
identical differs
01

What actually differs

3 of 19 parameters
Parameter 450 440 Difference
Module efficiency 22.00 % 21.60 % 0.40 pp more efficient
Power density 220.5 Wp/m² 215.6 Wp/m² 4.9 Wp/m² higher
Rated power 450 Wp 440 Wp 10 W more power
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 (-0.280 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
450
15,098 kWh
440
14,763 kWh
Lifetime gap
335 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario 450 440
Standard test conditions 25 °C 100.0% of rated power 450 W 440 W
Cool, bright day 40 °C 95.8% of rated power 431 W 422 W
Typical summer roof 55 °C 91.6% of rated power 412 W 403 W
Hot roof 70 °C 87.4% of rated power 393 W 385 W
03

Full specification

Parameter 450 440 Difference
Power and efficiency
Rated power 450 Wp 440 Wp +10 W for 450
Module efficiency 22.00 % 21.60 % +0.40 pp for 450
Power density 220.5 Wp/m² 215.6 Wp/m² +4.9 Wp/m² for 450
Open-circuit voltage 39.18 V 38.82 V Effectively the same
Voltage at max power 32.47 V 32.10 V Effectively the same
Short-circuit current 14.68 A 14.58 A Effectively the same
Current at max power 13.86 A 13.71 A Effectively the same
Temperature
Temperature coefficient -0.280 %/°C -0.280 %/°C Same
Mechanical
Dimensions 1800x1134x30 mm 1800x1134x30 mm Same
Module area 2.041 m² 2.041 m² Same
Weight 21.7 kg 21.7 kg Same
Weight per kWp 48.2 kg/kWp 49.3 kg/kWp Effectively the same
Warranty and degradation
Product warranty 25 yrs 25 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 108 108 Same
Bifacial Yes Yes Same
04

Against the whole database

14,005 panels
Efficiency
#6,517 vs #7,652
450 leads by 1,135 places
Power density
#6,236 vs #7,721
450 leads by 1,485 places
Heat behaviour
#1,309 vs #1,309
Tied - the same position in the database
Weight
#2,116 vs #2,864
450 leads by 748 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#6,746 vs #7,621
450 leads by 875 places
05

More useful comparisons

Open the full database
Same series, other bin
DAS Solar
DAS Solar DAS-DH108ND-450 vs DAS Solar DAS-DH108ND-460
3 differences, the largest is module efficiency
Same series, other bin
DAS Solar
DAS Solar DAS-DH108ND-450 vs DAS Solar DAS-DH108ND-455
One difference: module efficiency
Same series, other bin
DAS Solar
DAS Solar DAS-DH108ND-450 vs DAS Solar DAS-DH108ND-445
One difference: module efficiency
Same series, other bin
DAS Solar
DAS Solar DAS-DH108ND-450 vs DAS Solar DAS-DH108NA-445W
11 differences, the largest is module efficiency
Same series, other bin
DAS Solar
DAS Solar DAS-DH108ND-450 vs DAS Solar DAS-DH108NA-440W
10 differences, the largest is module efficiency
Same series, other bin
DAS Solar
DAS Solar DAS-DH108ND-450 vs DAS Solar DAS-DH108NA-435
8 differences, the largest is temperature coefficient
06

Written summary

07

Questions about this pairing

Which panel is better: DAS Solar DAS-DH108ND-450 or DAS Solar DAS-DH108ND-440?
According to our database: DAS Solar DAS-DH108ND-450 has higher module efficiency (22.00% vs 21.60%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of DAS Solar DAS-DH108ND-450 and DAS Solar DAS-DH108ND-440?
DAS Solar DAS-DH108ND-450 has a module efficiency of 22.00%, while DAS Solar DAS-DH108ND-440 is 21.60%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does DAS Solar DAS-DH108ND-450 use vs DAS Solar DAS-DH108ND-440?
DAS Solar DAS-DH108ND-450 uses TOPCon cells; DAS Solar DAS-DH108ND-440 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-DH108ND-450 and DAS Solar DAS-DH108ND-440?
DAS Solar DAS-DH108ND-450 has a 30 years power warranty; DAS Solar DAS-DH108ND-440 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-DH108ND-450 and DAS Solar DAS-DH108ND-440 bifacial panels?
Both DAS Solar DAS-DH108ND-450 and DAS Solar DAS-DH108ND-440 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.