Jinko Solar JKM620N-66HL4M-BDV vs Jinko Solar JKM615N-66HL4M-BDV
VS
The verdict
Identical on every published parameter
All 19 comparable parameters agree. Two records this alike are usually one panel sold under two names, or two bins of the same production line - decide on price and on who you would rather buy from.
How alike are they
19
of 19 comparable
parameters are identical
parameters are identical
identical
differs
01
0 of 19 parameters
What actually differs
Every comparable parameter agrees. The full specification is below.
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.
JKM620N-66HL4M-BDV
20,802 kWh
JKM615N-66HL4M-BDV
20,634 kWh
Lifetime gap
168 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
JKM620N-66HL4M-BDV
JKM615N-66HL4M-BDV
Standard test conditions
25 °C
100.0% of rated power
620 W
615 W
Cool, bright day
40 °C
95.7% of rated power
593 W
588 W
Typical summer roof
55 °C
91.3% of rated power
566 W
561 W
Hot roof
70 °C
87.0% of rated power
539 W
535 W
03
Full specification
Parameter
JKM620N-66HL4M-BDV
JKM615N-66HL4M-BDV
Difference
Power and efficiency
Rated power
620 Wp
615 Wp
Effectively the same
Module efficiency
22.95 %
22.77 %
Effectively the same
Power density
229.5 Wp/m²
227.7 Wp/m²
Effectively the same
Open-circuit voltage
49.08 V
48.88 V
Effectively the same
Voltage at max power
40.74 V
40.60 V
Effectively the same
Short-circuit current
16.08 A
16.02 A
Effectively the same
Current at max power
15.22 A
15.15 A
Effectively the same
Temperature
Temperature coefficient
-0.290 %/°C
-0.290 %/°C
Same
Mechanical
Dimensions
2382x1134x30 mm
2382x1134x30 mm
Same
Module area
2.701 m²
2.701 m²
Same
Weight
32.4 kg
32.4 kg
Same
Weight per kWp
52.3 kg/kWp
52.7 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
132
132
Same
Bifacial
Yes
Yes
Same
04
14,005 panels
Against the whole database
Efficiency
#2,268
vs
#3,073
JKM620N-66HL4M-BDV leads by 805 places
Power density
#2,191
vs
#3,077
JKM620N-66HL4M-BDV leads by 886 places
Heat behaviour
#2,165
vs
#2,165
Tied - the same position in the database
Weight
#5,719
vs
#6,311
JKM620N-66HL4M-BDV leads by 592 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#2,572
vs
#2,924
JKM620N-66HL4M-BDV leads by 352 places
05
Open the full database
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The same specification on paper
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06
Written summary
Checking cache...
07
Questions about this pairing
Which panel is better: Jinko Solar JKM620N-66HL4M-BDV or Jinko Solar JKM615N-66HL4M-BDV?
According to our database: Jinko Solar JKM620N-66HL4M-BDV has higher module efficiency (22.95% vs 22.77%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Jinko Solar JKM620N-66HL4M-BDV and Jinko Solar JKM615N-66HL4M-BDV?
Jinko Solar JKM620N-66HL4M-BDV has a module efficiency of 22.95%, while Jinko Solar JKM615N-66HL4M-BDV is 22.77%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Jinko Solar JKM620N-66HL4M-BDV use vs Jinko Solar JKM615N-66HL4M-BDV?
Jinko Solar JKM620N-66HL4M-BDV uses N-type cells; Jinko Solar JKM615N-66HL4M-BDV 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 JKM620N-66HL4M-BDV and Jinko Solar JKM615N-66HL4M-BDV?
Jinko Solar JKM620N-66HL4M-BDV has a 30 years power warranty; Jinko Solar JKM615N-66HL4M-BDV 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 Jinko Solar JKM620N-66HL4M-BDV and Jinko Solar JKM615N-66HL4M-BDV bifacial panels?
Both Jinko Solar JKM620N-66HL4M-BDV and Jinko Solar JKM615N-66HL4M-BDV 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 172 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.