JA Solar JAT54S41-470/LR vs JA Solar JAT54S41-455/LR
VS
The verdict
470/LR leads on the differences that matter
The largest is module efficiency: 0.70 pp more efficient. 16 of 19 comparable parameters are identical.
See all 3 differencesHow alike are they
16
of 19 comparable
parameters are identical
parameters are identical
identical
differs
01
3 of 19 parameters
What actually differs
Parameter
470/LR
455/LR
Difference
Module efficiency
23.50 %
22.80 %
0.70 pp more efficient
Power density
235.2 Wp/m²
227.7 Wp/m²
7.5 Wp/m² higher
Rated power
470 Wp
455 Wp
15 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 (-0.260 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
470/LR
15,769 kWh
455/LR
15,266 kWh
Lifetime gap
503 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
470/LR
455/LR
Standard test conditions
25 °C
100.0% of rated power
470 W
455 W
Cool, bright day
40 °C
96.1% of rated power
452 W
437 W
Typical summer roof
55 °C
92.2% of rated power
433 W
420 W
Hot roof
70 °C
88.3% of rated power
415 W
402 W
03
Full specification
Parameter
470/LR
455/LR
Difference
Power and efficiency
Rated power
470 Wp
455 Wp
+15 W for 470/LR
Module efficiency
23.50 %
22.80 %
+0.70 pp for 470/LR
Power density
235.2 Wp/m²
227.7 Wp/m²
+7.5 Wp/m² for 470/LR
Open-circuit voltage
40.96 V
40.75 V
Effectively the same
Voltage at max power
34.74 V
34.32 V
Effectively the same
Short-circuit current
14.84 A
14.66 A
Effectively the same
Current at max power
13.54 A
13.27 A
Effectively the same
Temperature
Temperature coefficient
-0.260 %/°C
-0.260 %/°C
Same
Mechanical
Dimensions
1762x1134x30 mm
1762x1134x30 mm
Same
Module area
1.998 m²
1.998 m²
Same
Weight
19.3 kg
19.3 kg
Same
Weight per kWp
41.1 kg/kWp
42.4 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
No
No
Same
04
14,005 panels
Against the whole database
Efficiency
#716
vs
#2,714
470/LR leads by 1,998 places
Power density
#674
vs
#2,888
470/LR leads by 2,214 places
Heat behaviour
#511
vs
#511
Tied - the same position in the database
Weight
#170
vs
#218
470/LR leads by 48 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#4,126
vs
#5,448
470/LR leads by 1,322 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: JA Solar JAT54S41-470/LR or JA Solar JAT54S41-455/LR?
According to our database: JA Solar JAT54S41-470/LR has higher module efficiency (23.50% vs 22.80%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of JA Solar JAT54S41-470/LR and JA Solar JAT54S41-455/LR?
JA Solar JAT54S41-470/LR has a module efficiency of 23.50%, while JA Solar JAT54S41-455/LR is 22.80%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does JA Solar JAT54S41-470/LR use vs JA Solar JAT54S41-455/LR?
JA Solar JAT54S41-470/LR uses TOPCon cells; JA Solar JAT54S41-455/LR 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 JA Solar JAT54S41-470/LR and JA Solar JAT54S41-455/LR?
JA Solar JAT54S41-470/LR has a 30 years power warranty; JA Solar JAT54S41-455/LR 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 389 JA 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.