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JKM615-635N-78HL4-(V)-F6-EN (635W variant) vs JKM580-605N-72HL4-(V)-F8 (600W bin) 10 of 19 identical Swap Change panels

Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (635W variant) vs Jinko Solar JKM580-605N-72HL4-(V)-F8 (600W bin)

JKM615-635N-78HL4-(V)-F6-EN (635W variant)
635 Wp 22.72 % N-type
Open panel page Datasheet PDF
VS
Jinko Solar JKM580-605N-72HL4-(V)-F8 (600W bin)
JKM580-605N-72HL4-(V)-F8 (600W bin)
600 Wp 23.23 % N-type
Open panel page Datasheet PDF
The verdict

JKM580-605N-72HL4-(V)-F8 (600W bin) leads on the differences that matter

The largest is rated power: 35 W more power. 10 of 19 comparable parameters are identical.

See all 9 differences
How alike are they
10 of 19 comparable
parameters are identical
identical differs
01

What actually differs

9 of 19 parameters
Parameter JKM615-635N-78HL4-(V)-F6-EN (635W variant) JKM580-605N-72HL4-(V)-F8 (600W bin) Difference
Rated power 635 Wp 600 Wp 35 W more power
Module efficiency 22.72 % 23.23 % 0.51 pp more efficient
Module area 2.795 m² 2.583 m² 0.212 m² apart
Open-circuit voltage 56.85 V 52.95 V 3.90 V apart
Weight 29.5 kg 27.0 kg 2.5 kg lighter
Power density 227.2 Wp/m² 232.3 Wp/m² 5.1 Wp/m² higher
Cell count 156 144 12 cells apart
Voltage at max power 47.46 V 44.06 V 3.40 V apart
Dimensions 2465x1134x35 mm 2278x1134x30 mm 2465x1134x35 mm vs 2278x1134x30 mm
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.
JKM615-635N-78HL4-(V)-F6-EN (635W variant)
21,306 kWh
JKM580-605N-72HL4-(V)-F8 (600W bin)
20,131 kWh
Lifetime gap
1,175 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario JKM615-635N-78HL4-(V)-F6-EN (635W variant) JKM580-605N-72HL4-(V)-F8 (600W bin)
Standard test conditions 25 °C 100.0% of rated power 635 W 600 W
Cool, bright day 40 °C 95.7% of rated power 607 W 574 W
Typical summer roof 55 °C 91.3% of rated power 580 W 548 W
Hot roof 70 °C 87.0% of rated power 552 W 522 W
03

Full specification

Parameter JKM615-635N-78HL4-(V)-F6-EN (635W variant) JKM580-605N-72HL4-(V)-F8 (600W bin) Difference
Power and efficiency
Rated power 635 Wp 600 Wp +35 W for JKM615-635N-78HL4-(V)-F6-EN (635W variant)
Module efficiency 22.72 % 23.23 % +0.51 pp for JKM580-605N-72HL4-(V)-F8 (600W bin)
Power density 227.2 Wp/m² 232.3 Wp/m² +5.1 Wp/m² for JKM580-605N-72HL4-(V)-F8 (600W bin)
Open-circuit voltage 56.85 V 52.95 V 3.90 V apart
Voltage at max power 47.46 V 44.06 V 3.40 V apart
Short-circuit current 14.04 A 14.25 A Effectively the same
Current at max power 13.38 A 13.62 A Effectively the same
Temperature
Temperature coefficient -0.290 %/°C -0.290 %/°C Same
Mechanical
Dimensions 2465x1134x35 mm 2278x1134x30 mm 2465x1134x35 mm vs 2278x1134x30 mm
Module area 2.795 m² 2.583 m² 0.212 m² apart
Weight 29.5 kg 27.0 kg -2.5 kg for JKM580-605N-72HL4-(V)-F8 (600W bin)
Weight per kWp 46.5 kg/kWp 45.0 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 N-type N-type Same
Cell type Monocrystalline Monocrystalline Same
Cell count 156 144 12 cells apart
Bifacial No No Same
04

Against the whole database

14,129 panels
Efficiency
#3,302 vs #1,295
JKM580-605N-72HL4-(V)-F8 (600W bin) leads by 2,007 places
Power density
#3,309 vs #1,295
JKM580-605N-72HL4-(V)-F8 (600W bin) leads by 2,014 places
Heat behaviour
#2,220 vs #2,220
Tied - the same position in the database
Weight
#1,173 vs #574
JKM580-605N-72HL4-(V)-F8 (600W bin) leads by 599 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#2,276 vs #2,837
JKM615-635N-78HL4-(V)-F6-EN (635W variant) leads by 561 places
05

More useful comparisons

Open the full database
Same series, other bin
Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (635W variant) vs Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (630W variant)
The same specification on paper
Same series, other bin
Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (635W variant) vs Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (625W variant)
3 differences, the largest is module efficiency
Same series, other bin
Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (635W variant) vs Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (620W variant)
3 differences, the largest is module efficiency
Same series, other bin
Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (635W variant) vs Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (615W variant)
3 differences, the largest is module efficiency
Same series, other bin
Jinko Solar JKM580-605N-72HL4-(V)-F8 (600W bin) vs Jinko Solar JKM580-605N-72HL4-(V)-F8 (605W bin)
The same specification on paper
Same series, other bin
Jinko Solar JKM580-605N-72HL4-(V)-F8 (600W bin) vs Jinko Solar JKM580-605N-72HL4-(V) 605W
The same specification on paper
06

Written summary

07

Questions about this pairing

Which panel is better: Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (635W variant) or Jinko Solar JKM580-605N-72HL4-(V)-F8 (600W bin)?
According to our database: Jinko Solar JKM580-605N-72HL4-(V)-F8 (600 W bin) has higher module efficiency (23.23% vs 22.72%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (635W variant) and Jinko Solar JKM580-605N-72HL4-(V)-F8 (600W bin)?
Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (635 W variant) has a module efficiency of 22.72%, while Jinko Solar JKM580-605N-72HL4-(V)-F8 (600 W bin) is 23.23%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (635W variant) use vs Jinko Solar JKM580-605N-72HL4-(V)-F8 (600W bin)?
Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (635 W variant) uses N-type cells; Jinko Solar JKM580-605N-72HL4-(V)-F8 (600 W bin) uses N-type. 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 Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (635W variant) and Jinko Solar JKM580-605N-72HL4-(V)-F8 (600W bin)?
Jinko Solar JKM615-635N-78HL4-(V)-F6-EN (635 W variant) has a 30 years power warranty; Jinko Solar JKM580-605N-72HL4-(V)-F8 (600 W bin) 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 135 Jinko 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.