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455W vs 450W 18 of 19 identical Swap Change panels

Aptos Solar DNA-120-BF10-455W vs Aptos Solar DNA-120-BF10-450W

Aptos Solar DNA-120-BF10-455W
Aptos Solar
DNA-120-BF10-455W
455 Wp 21.03 % PERC Bifacial
Open panel page Datasheet PDF
VS
Aptos Solar DNA-120-BF10-450W
Aptos Solar
DNA-120-BF10-450W
450 Wp 20.79 % PERC Bifacial
Open panel page Datasheet PDF
The verdict

455W leads on the differences that matter

The largest is module efficiency: 0.24 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 455W 450W Difference
Module efficiency 21.03 % 20.79 % 0.24 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 (-0.350 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
455W
14,770 kWh
450W
14,608 kWh
Lifetime gap
162 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario 455W 450W
Standard test conditions 25 °C 100.0% of rated power 455 W 450 W
Cool, bright day 40 °C 94.8% of rated power 431 W 426 W
Typical summer roof 55 °C 89.5% of rated power 407 W 403 W
Hot roof 70 °C 84.2% of rated power 383 W 379 W
03

Full specification

Parameter 455W 450W Difference
Power and efficiency
Rated power 455 Wp 450 Wp Effectively the same
Module efficiency 21.03 % 20.79 % +0.24 pp for 455W
Power density 210.3 Wp/m² 208.0 Wp/m² Effectively the same
Open-circuit voltage 41.09 V 41.70 V Effectively the same
Voltage at max power 35.29 V 35.20 V Effectively the same
Short-circuit current 13.66 A 13.54 A Effectively the same
Current at max power 12.89 A 12.78 A Effectively the same
Temperature
Temperature coefficient -0.350 %/°C -0.350 %/°C Same
Mechanical
Dimensions 1908x1134x35 mm 1908x1134x35 mm Same
Module area 2.164 m² 2.164 m² Same
Weight 22.8 kg 22.8 kg Same
Weight per kWp 50.0 kg/kWp 50.6 kg/kWp Effectively the same
Warranty and degradation
Product warranty 30 yrs 30 yrs Same
Performance warranty 30 yrs 30 yrs Same
Annual degradation 0.54 %/yr 0.54 %/yr Same
Technology
Cell technology PERC PERC Same
Cell type Monocrystalline Monocrystalline Same
Cell count 120 120 Same
Bifacial Yes Yes Same
04

Against the whole database

14,005 panels
Efficiency
#9,671 vs #10,558
455W leads by 887 places
Power density
#9,646 vs #10,479
455W leads by 833 places
Heat behaviour
#10,419 vs #10,419
Tied - the same position in the database
Weight
#3,584 vs #4,018
455W leads by 434 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#6,672 vs #7,169
455W leads by 497 places
05

More useful comparisons

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06

Written summary

07

Questions about this pairing

Which panel is better: Aptos Solar DNA-120-BF10-455W or Aptos Solar DNA-120-BF10-450W?
According to our database: Aptos Solar DNA-120-BF10-455 W has higher module efficiency (21.03% vs 20.79%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Aptos Solar DNA-120-BF10-455W and Aptos Solar DNA-120-BF10-450W?
Aptos Solar DNA-120-BF10-455 W has a module efficiency of 21.03%, while Aptos Solar DNA-120-BF10-450 W is 20.79%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Aptos Solar DNA-120-BF10-455W use vs Aptos Solar DNA-120-BF10-450W?
Aptos Solar DNA-120-BF10-455 W uses PERC cells; Aptos Solar DNA-120-BF10-450 W uses PERC. 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 Aptos Solar DNA-120-BF10-455W and Aptos Solar DNA-120-BF10-450W?
Aptos Solar DNA-120-BF10-455 W has a 30 years power warranty; Aptos Solar DNA-120-BF10-450 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 Aptos Solar DNA-120-BF10-455W and Aptos Solar DNA-120-BF10-450W bifacial panels?
Both Aptos Solar DNA-120-BF10-455 W and Aptos Solar DNA-120-BF10-450 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.

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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.