Jinko Solar JKM665N-66QL6-BDV-AntiGlare-F1-EU vs Jinko Solar JKM645-670N-66QL6-BDV-L
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 (-0.260 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
JKM665N-66QL6-BDV-AntiGlare-F1-EU
22,486 kWh
JKM645-670N-66QL6-BDV-L
22,655 kWh
Lifetime gap
169 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
JKM665N-66QL6-BDV-AntiGlare-F1-EU
JKM645-670N-66QL6-BDV-L
Standard test conditions
25 °C
100.0% of rated power
665 W
670 W
Cool, bright day
40 °C
96.1% of rated power
639 W
644 W
Typical summer roof
55 °C
92.2% of rated power
613 W
618 W
Hot roof
70 °C
88.3% of rated power
587 W
592 W
03
Full specification
Parameter
JKM665N-66QL6-BDV-AntiGlare-F1-EU
JKM645-670N-66QL6-BDV-L
Difference
Power and efficiency
Rated power
665 Wp
670 Wp
Effectively the same
Module efficiency
24.62 %
24.80 %
Effectively the same
Power density
246.2 Wp/m²
248.0 Wp/m²
Effectively the same
Open-circuit voltage
50.55 V
50.60 V
Effectively the same
Voltage at max power
42.85 V
42.92 V
Effectively the same
Short-circuit current
16.24 A
16.34 A
Effectively the same
Current at max power
15.52 A
15.61 A
Effectively the same
Temperature
Temperature coefficient
-0.260 %/°C
-0.260 %/°C
Same
Mechanical
Dimensions
2382x1134x30 mm
2382x1134x30 mm
Same
Module area
2.701 m²
2.701 m²
Same
Weight
32.5 kg
32.5 kg
Same
Weight per kWp
48.9 kg/kWp
48.5 kg/kWp
Effectively the same
Warranty and degradation
Product warranty
12 yrs
12 yrs
Same
Performance warranty
30 yrs
30 yrs
Same
Annual degradation
0.35 %/yr
0.35 %/yr
Same
Technology
Cell technology
N-type
N-type
Same
Cell type
Monocrystalline
Monocrystalline
Same
Cell count
264
264
Same
Bifacial
Yes
Yes
Same
04
14,005 panels
Against the whole database
Efficiency
#42
vs
#12
JKM645-670N-66QL6-BDV-L leads by 30 places
Power density
#42
vs
#14
JKM645-670N-66QL6-BDV-L leads by 28 places
Heat behaviour
#511
vs
#511
Tied - the same position in the database
Weight
#2,555
vs
#2,321
JKM645-670N-66QL6-BDV-L leads by 234 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#634
vs
#486
JKM645-670N-66QL6-BDV-L leads by 148 places
05
Open the full database
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The same specification on paper
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Jinko Solar JKM665N-66QL6-BDV-AntiGlare-F1-EU vs Jinko Solar JKM650-670N-66QL6-BDV (665W class)
One difference: cell technology
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06
Written summary
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07
Questions about this pairing
Which panel is better: Jinko Solar JKM665N-66QL6-BDV-AntiGlare-F1-EU or Jinko Solar JKM645-670N-66QL6-BDV-L?
According to our database: Jinko Solar JKM645-670N-66QL6-BDV-L has higher module efficiency (24.80% vs 24.62%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Jinko Solar JKM665N-66QL6-BDV-AntiGlare-F1-EU and Jinko Solar JKM645-670N-66QL6-BDV-L?
Jinko Solar JKM665N-66QL6-BDV-AntiGlare-F1-EU has a module efficiency of 24.62%, while Jinko Solar JKM645-670N-66QL6-BDV-L is 24.80%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Jinko Solar JKM665N-66QL6-BDV-AntiGlare-F1-EU use vs Jinko Solar JKM645-670N-66QL6-BDV-L?
Jinko Solar JKM665N-66QL6-BDV-AntiGlare-F1-EU uses N-type cells; Jinko Solar JKM645-670N-66QL6-BDV-L 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 JKM665N-66QL6-BDV-AntiGlare-F1-EU and Jinko Solar JKM645-670N-66QL6-BDV-L?
Jinko Solar JKM665N-66QL6-BDV-AntiGlare-F1-EU has a 30 years power warranty; Jinko Solar JKM645-670N-66QL6-BDV-L 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 JKM665N-66QL6-BDV-AntiGlare-F1-EU and Jinko Solar JKM645-670N-66QL6-BDV-L bifacial panels?
Both Jinko Solar JKM665N-66QL6-BDV-AntiGlare-F1-EU and Jinko Solar JKM645-670N-66QL6-BDV-L 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.