Jetion JT440SNt(B) vs Jetion JT445SNt(B)
VS
The verdict
JT445SNt(B) leads on the differences that matter
The largest is module efficiency: 0.30 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
JT440SNt(B)
JT445SNt(B)
Difference
Module efficiency
22.00 %
22.30 %
0.30 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 (-0.290 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
JT440SNt(B)
14,763 kWh
JT445SNt(B)
14,931 kWh
Lifetime gap
168 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
JT440SNt(B)
JT445SNt(B)
Standard test conditions
25 °C
100.0% of rated power
440 W
445 W
Cool, bright day
40 °C
95.7% of rated power
421 W
426 W
Typical summer roof
55 °C
91.3% of rated power
402 W
406 W
Hot roof
70 °C
87.0% of rated power
383 W
387 W
03
Full specification
Parameter
JT440SNt(B)
JT445SNt(B)
Difference
Power and efficiency
Rated power
440 Wp
445 Wp
Effectively the same
Module efficiency
22.00 %
22.30 %
+0.30 pp for JT445SNt(B)
Power density
220.2 Wp/m²
222.7 Wp/m²
Effectively the same
Open-circuit voltage
35.30 V
35.50 V
Effectively the same
Voltage at max power
29.50 V
29.69 V
Effectively the same
Short-circuit current
15.92 A
15.99 A
Effectively the same
Current at max power
14.92 A
14.99 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
53.9 kg/kWp
53.3 kg/kWp
Effectively the same
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
#6,517
vs
#5,100
JT445SNt(B) leads by 1,417 places
Power density
#6,328
vs
#5,302
JT445SNt(B) leads by 1,026 places
Heat behaviour
#2,165
vs
#2,165
Tied - the same position in the database
Weight
#8,009
vs
#7,098
JT445SNt(B) leads by 911 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#9,829
vs
#9,435
JT445SNt(B) leads by 394 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 JT440SNt(B) or Jetion JT445SNt(B)?
According to our database: Jetion JT445SNt(B) has higher module efficiency (22.30% vs 22.00%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Jetion JT440SNt(B) and Jetion JT445SNt(B)?
Jetion JT440SNt(B) has a module efficiency of 22.00%, while Jetion JT445SNt(B) is 22.30%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Jetion JT440SNt(B) use vs Jetion JT445SNt(B)?
Jetion JT440SNt(B) uses TOPCon cells; Jetion JT445SNt(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 JT440SNt(B) and Jetion JT445SNt(B)?
Jetion JT440SNt(B) has a 30 years power warranty; Jetion JT445SNt(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 JT440SNt(B) and Jetion JT445SNt(B) bifacial panels?
Both Jetion JT440SNt(B) and Jetion JT445SNt(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.