Aptos Solar DNA-144-MF26-445W vs Aptos Solar DNA-144-MF26-450W
VS
The verdict
450W leads on the differences that matter
The largest is module efficiency: 0.23 pp more efficient. 18 of 19 comparable parameters are identical.
See the one differenceHow alike are they
18
of 19 comparable
parameters are identical
parameters are identical
identical
differs
01
1 of 19 parameters
What actually differs
Parameter
445W
450W
Difference
Module efficiency
19.98 %
20.21 %
0.23 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 (-0.380 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
445W
14,445 kWh
450W
14,608 kWh
Lifetime gap
163 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
445W
450W
Standard test conditions
25 °C
100.0% of rated power
445 W
450 W
Cool, bright day
40 °C
94.3% of rated power
420 W
424 W
Typical summer roof
55 °C
88.6% of rated power
394 W
399 W
Hot roof
70 °C
82.9% of rated power
369 W
373 W
03
Full specification
Parameter
445W
450W
Difference
Power and efficiency
Rated power
445 Wp
450 Wp
Effectively the same
Module efficiency
19.98 %
20.21 %
+0.23 pp for 450W
Power density
204.4 Wp/m²
206.7 Wp/m²
Effectively the same
Open-circuit voltage
49.70 V
49.90 V
Effectively the same
Voltage at max power
40.80 V
41.00 V
Effectively the same
Short-circuit current
11.26 A
11.33 A
Effectively the same
Current at max power
10.67 A
10.74 A
Effectively the same
Temperature
Temperature coefficient
-0.380 %/°C
-0.380 %/°C
Same
Mechanical
Dimensions
2095x1039x40 mm
2095x1039x40 mm
Same
Module area
2.177 m²
2.177 m²
Same
Weight
24.1 kg
24.1 kg
Same
Weight per kWp
54.2 kg/kWp
53.6 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
144
144
Same
Bifacial
No
No
Same
04
14,005 panels
Against the whole database
Efficiency
#12,293
vs
#11,945
450W leads by 348 places
Power density
#11,529
vs
#10,918
450W leads by 611 places
Heat behaviour
#13,397
vs
#13,397
Tied - the same position in the database
Weight
#8,367
vs
#7,554
450W leads by 813 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#8,463
vs
#7,964
450W leads by 499 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: Aptos Solar DNA-144-MF26-445W or Aptos Solar DNA-144-MF26-450W?
According to our database: Aptos Solar DNA-144-MF26-450 W has higher module efficiency (20.21% vs 19.98%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Aptos Solar DNA-144-MF26-445W and Aptos Solar DNA-144-MF26-450W?
Aptos Solar DNA-144-MF26-445 W has a module efficiency of 19.98%, while Aptos Solar DNA-144-MF26-450 W is 20.21%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Aptos Solar DNA-144-MF26-445W use vs Aptos Solar DNA-144-MF26-450W?
Aptos Solar DNA-144-MF26-445 W uses PERC cells; Aptos Solar DNA-144-MF26-450 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-144-MF26-445W and Aptos Solar DNA-144-MF26-450W?
Aptos Solar DNA-144-MF26-445 W has a 30 years power warranty; Aptos Solar DNA-144-MF26-450 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.
Shop prices: See 8 Aptos 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.