Jetion JT460SNt(B) vs Jetion JT440SNt(B)
VS
The verdict
JT460SNt(B) leads on the differences that matter
The largest is module efficiency: 1.00 pp more efficient. 15 of 19 comparable parameters are identical.
See all 4 differencesHow alike are they
15
of 19 comparable
parameters are identical
parameters are identical
identical
differs
01
4 of 19 parameters
What actually differs
Parameter
JT460SNt(B)
JT440SNt(B)
Difference
Module efficiency
23.00 %
22.00 %
1.00 pp more efficient
Power density
230.2 Wp/m²
220.2 Wp/m²
10.0 Wp/m² higher
Rated power
460 Wp
440 Wp
20 W more power
Weight per kWp
51.5 kg/kWp
53.9 kg/kWp
2.3 kg/kWp lighter
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 (-0.290 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
JT460SNt(B)
15,434 kWh
JT440SNt(B)
14,763 kWh
Lifetime gap
671 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
JT460SNt(B)
JT440SNt(B)
Standard test conditions
25 °C
100.0% of rated power
460 W
440 W
Cool, bright day
40 °C
95.7% of rated power
440 W
421 W
Typical summer roof
55 °C
91.3% of rated power
420 W
402 W
Hot roof
70 °C
87.0% of rated power
400 W
383 W
03
Full specification
Parameter
JT460SNt(B)
JT440SNt(B)
Difference
Power and efficiency
Rated power
460 Wp
440 Wp
+20 W for JT460SNt(B)
Module efficiency
23.00 %
22.00 %
+1.00 pp for JT460SNt(B)
Power density
230.2 Wp/m²
220.2 Wp/m²
+10.0 Wp/m² for JT460SNt(B)
Open-circuit voltage
36.00 V
35.30 V
Effectively the same
Voltage at max power
30.27 V
29.50 V
Effectively the same
Short-circuit current
16.20 A
15.92 A
Effectively the same
Current at max power
15.20 A
14.92 A
Effectively the same
Temperature
Temperature coefficient
-0.290 %/°C
-0.290 %/°C
Same
Mechanical
Dimensions
1762x1134x30 mm
1762x1134x30 mm
Same
Module area
1.998 m²
1.998 m²
Same
Weight
23.7 kg
23.7 kg
Same
Weight per kWp
51.5 kg/kWp
53.9 kg/kWp
-2.3 kg/kWp for JT460SNt(B)
Warranty and degradation
Product warranty
12 yrs
12 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
96
96
Same
Bifacial
Yes
Yes
Same
04
14,005 panels
Against the whole database
Efficiency
#1,919
vs
#6,517
JT460SNt(B) leads by 4,598 places
Power density
#1,876
vs
#6,328
JT460SNt(B) leads by 4,452 places
Heat behaviour
#2,165
vs
#2,165
Tied - the same position in the database
Weight
#4,901
vs
#8,009
JT460SNt(B) leads by 3,108 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#8,148
vs
#9,829
JT460SNt(B) leads by 1,681 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: Jetion JT460SNt(B) or Jetion JT440SNt(B)?
According to our database: Jetion JT460SNt(B) has higher module efficiency (23.00% vs 22.00%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Jetion JT460SNt(B) and Jetion JT440SNt(B)?
Jetion JT460SNt(B) has a module efficiency of 23.00%, while Jetion JT440SNt(B) is 22.00%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Jetion JT460SNt(B) use vs Jetion JT440SNt(B)?
Jetion JT460SNt(B) uses TOPCon cells; Jetion JT440SNt(B) 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 Jetion JT460SNt(B) and Jetion JT440SNt(B)?
Jetion JT460SNt(B) has a 30 years power warranty; Jetion JT440SNt(B) 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 Jetion JT460SNt(B) and Jetion JT440SNt(B) bifacial panels?
Both Jetion JT460SNt(B) and Jetion JT440SNt(B) 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 2 Jetion 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.