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JT775SXt(B) vs JT800SXt(B) 16 of 19 identical Swap Change panels

Jetion JT775SXt(B) vs Jetion JT800SXt(B)

Jetion
JT775SXt(B)
775 Wp 22.90 % TOPCon Bifacial
Open panel page Datasheet PDF
VS
Jetion
JT800SXt(B)
800 Wp 23.70 % TOPCon Bifacial
Open panel page Datasheet PDF
The verdict

JT800SXt(B) leads on the differences that matter

The largest is module efficiency: 0.80 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 JT775SXt(B) JT800SXt(B) Difference
Module efficiency 22.90 % 23.70 % 0.80 pp more efficient
Rated power 775 Wp 800 Wp 25 W more power
Power density 229.2 Wp/m² 236.6 Wp/m² 7.4 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.
JT775SXt(B)
26,003 kWh
JT800SXt(B)
26,842 kWh
Lifetime gap
839 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario JT775SXt(B) JT800SXt(B)
Standard test conditions 25 °C 100.0% of rated power 775 W 800 W
Cool, bright day 40 °C 95.7% of rated power 741 W 765 W
Typical summer roof 55 °C 91.3% of rated power 708 W 730 W
Hot roof 70 °C 87.0% of rated power 674 W 696 W
03

Full specification

Parameter JT775SXt(B) JT800SXt(B) Difference
Power and efficiency
Rated power 775 Wp 800 Wp +25 W for JT800SXt(B)
Module efficiency 22.90 % 23.70 % +0.80 pp for JT800SXt(B)
Power density 229.2 Wp/m² 236.6 Wp/m² +7.4 Wp/m² for JT800SXt(B)
Open-circuit voltage 53.41 V 54.36 V Effectively the same
Voltage at max power 44.96 V 45.67 V Effectively the same
Short-circuit current 18.45 A 18.72 A Effectively the same
Current at max power 17.24 A 17.53 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 51.6 kg/kWp 50.0 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
#2,359 vs #517
JT800SXt(B) leads by 1,842 places
Power density
#2,377 vs #612
JT800SXt(B) leads by 1,765 places
Heat behaviour
#2,165 vs #2,165
Tied - the same position in the database
Weight
#4,981 vs #3,317
JT800SXt(B) leads by 1,664 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#169 vs #35
JT800SXt(B) leads by 134 places
05

More useful comparisons

Open the full database
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Jetion JT775SXt(B) vs Jetion JT785SXt(B)
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Jetion JT775SXt(B) vs Jetion JT750SLk(B)
14 differences, the largest is module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: Jetion JT775SXt(B) or Jetion JT800SXt(B)?
According to our database: Jetion JT800SXt(B) has higher module efficiency (23.70% vs 22.90%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Jetion JT775SXt(B) and Jetion JT800SXt(B)?
Jetion JT775SXt(B) has a module efficiency of 22.90%, while Jetion JT800SXt(B) is 23.70%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Jetion JT775SXt(B) use vs Jetion JT800SXt(B)?
Jetion JT775SXt(B) uses TOPCon cells; Jetion JT800SXt(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 JT775SXt(B) and Jetion JT800SXt(B)?
Jetion JT775SXt(B) has a 30 years power warranty; Jetion JT800SXt(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 JT775SXt(B) and Jetion JT800SXt(B) bifacial panels?
Both Jetion JT775SXt(B) and Jetion JT800SXt(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.