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JT800SXt(B) vs JT785SXt(B) 16 of 19 identical Swap Change panels

Jetion JT800SXt(B) vs Jetion JT785SXt(B)

Jetion
JT800SXt(B)
800 Wp 23.70 % TOPCon Bifacial
Open panel page Datasheet PDF
VS
Jetion
JT785SXt(B)
785 Wp 23.20 % TOPCon Bifacial
Open panel page Datasheet PDF
The verdict

JT800SXt(B) leads on the differences that matter

The largest is module efficiency: 0.50 pp more efficient. 16 of 19 comparable parameters are identical.

See all 3 differences
How alike are they
16 of 19 comparable
parameters are identical
identical differs
01

What actually differs

3 of 19 parameters
Parameter JT800SXt(B) JT785SXt(B) Difference
Module efficiency 23.70 % 23.20 % 0.50 pp more efficient
Rated power 800 Wp 785 Wp 15 W more power
Power density 236.6 Wp/m² 232.2 Wp/m² 4.4 Wp/m² higher
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.
JT800SXt(B)
26,842 kWh
JT785SXt(B)
26,338 kWh
Lifetime gap
504 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario JT800SXt(B) JT785SXt(B)
Standard test conditions 25 °C 100.0% of rated power 800 W 785 W
Cool, bright day 40 °C 95.7% of rated power 765 W 751 W
Typical summer roof 55 °C 91.3% of rated power 730 W 717 W
Hot roof 70 °C 87.0% of rated power 696 W 683 W
03

Full specification

Parameter JT800SXt(B) JT785SXt(B) Difference
Power and efficiency
Rated power 800 Wp 785 Wp +15 W for JT800SXt(B)
Module efficiency 23.70 % 23.20 % +0.50 pp for JT800SXt(B)
Power density 236.6 Wp/m² 232.2 Wp/m² +4.4 Wp/m² for JT800SXt(B)
Open-circuit voltage 54.36 V 53.79 V Effectively the same
Voltage at max power 45.67 V 45.24 V Effectively the same
Short-circuit current 18.72 A 18.56 A Effectively the same
Current at max power 17.53 A 17.35 A Effectively the same
Temperature
Temperature coefficient -0.290 %/°C -0.290 %/°C Same
Mechanical
Dimensions 2595x1303x33 mm 2595x1303x33 mm Same
Module area 3.381 m² 3.381 m² Same
Weight 40.0 kg 40.0 kg Same
Weight per kWp 50.0 kg/kWp 51.0 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 144 144 Same
Bifacial Yes Yes Same
04

Against the whole database

14,005 panels
Efficiency
#517 vs #1,306
JT800SXt(B) leads by 789 places
Power density
#612 vs #1,338
JT800SXt(B) leads by 726 places
Heat behaviour
#2,165 vs #2,165
Tied - the same position in the database
Weight
#3,317 vs #4,327
JT800SXt(B) leads by 1,010 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#35 vs #106
JT800SXt(B) leads by 71 places
05

More useful comparisons

Open the full database
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Jetion JT800SXt(B) vs Jetion JT795SXt(B)
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Jetion JT800SXt(B) vs Jetion JT790SXt(B)
2 differences, the largest is module efficiency
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Jetion JT800SXt(B) vs Jetion JT780SXt(B)
3 differences, the largest is module efficiency
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Jetion JT800SXt(B) vs Jetion JT775SXt(B)
3 differences, the largest is module efficiency
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Jetion JT800SXt(B) vs Jetion JT755SLk(B)
13 differences, the largest is temperature coefficient
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Jetion
Jetion JT800SXt(B) vs Jetion JT750SLk(B)
13 differences, the largest is temperature coefficient
06

Written summary

07

Questions about this pairing

Which panel is better: Jetion JT800SXt(B) or Jetion JT785SXt(B)?
According to our database: Jetion JT800SXt(B) has higher module efficiency (23.70% vs 23.20%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Jetion JT800SXt(B) and Jetion JT785SXt(B)?
Jetion JT800SXt(B) has a module efficiency of 23.70%, while Jetion JT785SXt(B) is 23.20%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Jetion JT800SXt(B) use vs Jetion JT785SXt(B)?
Jetion JT800SXt(B) uses TOPCon cells; Jetion JT785SXt(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 JT800SXt(B) and Jetion JT785SXt(B)?
Jetion JT800SXt(B) has a 30 years power warranty; Jetion JT785SXt(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 JT800SXt(B) and Jetion JT785SXt(B) bifacial panels?
Both Jetion JT800SXt(B) and Jetion JT785SXt(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.