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JKM495-54HL4M-BDV vs JKM425N-54HL4R-B 5 of 19 identical Swap Change panels

Jinko Solar JKM495-54HL4M-BDV vs Jinko Solar JKM425N-54HL4R-B

Jinko Solar JKM495-54HL4M-BDV
JKM495-54HL4M-BDV
495 Wp 22.26 % TOPCon Bifacial
Open panel page Datasheet PDF
VS
JKM425N-54HL4R-B
425 Wp 21.27 % N-type
Open panel page Datasheet PDF
The verdict

JKM495-54HL4M-BDV leads on the differences that matter

The largest is module efficiency: 0.99 pp more efficient. 5 of 19 comparable parameters are identical.

See all 14 differences
How alike are they
5 of 19 comparable
parameters are identical
identical differs
01

What actually differs

14 of 19 parameters
Parameter JKM495-54HL4M-BDV JKM425N-54HL4R-B Difference
Module efficiency 22.26 % 21.27 % 0.99 pp more efficient
Rated power 495 Wp 425 Wp 70 W more power
Power density 222.6 Wp/m² 212.7 Wp/m² 9.9 Wp/m² higher
Weight 27.0 kg 22.0 kg 5.0 kg lighter
Product warranty 15 yrs 25 yrs 10 yrs longer
Short-circuit current 15.58 A 13.58 A 2.00 A apart
Module area 2.224 m² 1.998 m² 0.226 m² apart
Cell technology TOPCon N-type TOPCon vs N-type
Weight per kWp 54.5 kg/kWp 51.8 kg/kWp 2.8 kg/kWp lighter
Current at max power 14.68 A 13.13 A 1.55 A apart
Bifacial Yes No Yes vs No
Open-circuit voltage 40.21 V 38.95 V 1.26 V apart
Dimensions 1961x1134x30 mm 1762x1134x30 mm 1961x1134x30 mm vs 1762x1134x30 mm
Voltage at max power 33.72 V 32.37 V 1.35 V apart
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.
JKM495-54HL4M-BDV
16,608 kWh
JKM425N-54HL4R-B
14,260 kWh
Lifetime gap
2,348 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario JKM495-54HL4M-BDV JKM425N-54HL4R-B
Standard test conditions 25 °C 100.0% of rated power 495 W 425 W
Cool, bright day 40 °C 95.7% of rated power 473 W 407 W
Typical summer roof 55 °C 91.3% of rated power 452 W 388 W
Hot roof 70 °C 87.0% of rated power 430 W 370 W
03

Full specification

Parameter JKM495-54HL4M-BDV JKM425N-54HL4R-B Difference
Power and efficiency
Rated power 495 Wp 425 Wp +70 W for JKM495-54HL4M-BDV
Module efficiency 22.26 % 21.27 % +0.99 pp for JKM495-54HL4M-BDV
Power density 222.6 Wp/m² 212.7 Wp/m² +9.9 Wp/m² for JKM495-54HL4M-BDV
Open-circuit voltage 40.21 V 38.95 V 1.26 V apart
Voltage at max power 33.72 V 32.37 V 1.35 V apart
Short-circuit current 15.58 A 13.58 A 2.00 A apart
Current at max power 14.68 A 13.13 A 1.55 A apart
Temperature
Temperature coefficient -0.290 %/°C -0.290 %/°C Same
Mechanical
Dimensions 1961x1134x30 mm 1762x1134x30 mm 1961x1134x30 mm vs 1762x1134x30 mm
Module area 2.224 m² 1.998 m² 0.226 m² apart
Weight 27.0 kg 22.0 kg -5.0 kg for JKM425N-54HL4R-B
Weight per kWp 54.5 kg/kWp 51.8 kg/kWp -2.8 kg/kWp for JKM425N-54HL4R-B
Warranty and degradation
Product warranty 15 yrs 25 yrs +10 yrs for JKM425N-54HL4R-B
Performance warranty 30 yrs 30 yrs Same
Annual degradation 0.40 %/yr 0.40 %/yr Same
Technology
Cell technology TOPCon N-type TOPCon vs N-type
Cell type Monocrystalline Monocrystalline Same
Cell count 108 108 Same
Bifacial Yes No Yes vs No
04

Against the whole database

14,129 panels
Efficiency
#5,656 vs #8,918
JKM495-54HL4M-BDV leads by 3,262 places
Power density
#5,584 vs #8,800
JKM495-54HL4M-BDV leads by 3,216 places
Heat behaviour
#2,220 vs #2,220
Tied - the same position in the database
Weight
#8,953 vs #5,163
JKM425N-54HL4R-B leads by 3,790 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#7,191 vs #8,718
JKM495-54HL4M-BDV leads by 1,527 places
05

More useful comparisons

Open the full database
Same series, other bin
Jinko Solar JKM495-54HL4M-BDV vs Jinko Solar JKM525-54HL4M-BDV
6 differences, the largest is module efficiency
Same series, other bin
Jinko Solar JKM495-54HL4M-BDV vs Jinko Solar JKM520-54HL4M-BDV
5 differences, the largest is module efficiency
Same series, other bin
Jinko Solar JKM495-54HL4M-BDV vs Jinko Solar JKM515-54HL4M-BDV
4 differences, the largest is module efficiency
Same series, other bin
Jinko Solar JKM495-54HL4M-BDV vs Jinko Solar JKM510-54HL4M-BDV
3 differences, the largest is module efficiency
Same series, other bin
Jinko Solar JKM495-54HL4M-BDV vs Jinko Solar JKM505-54HL4M-BDV
3 differences, the largest is module efficiency
Same series, other bin
Jinko Solar JKM495-54HL4M-BDV vs Jinko Solar JKM500-54HL4M-BDV
One difference: module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: Jinko Solar JKM495-54HL4M-BDV or Jinko Solar JKM425N-54HL4R-B?
According to our database: Jinko Solar JKM495-54HL4M-BDV has higher module efficiency (22.26% vs 21.27%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Jinko Solar JKM495-54HL4M-BDV and Jinko Solar JKM425N-54HL4R-B?
Jinko Solar JKM495-54HL4M-BDV has a module efficiency of 22.26%, while Jinko Solar JKM425N-54HL4R-B is 21.27%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Jinko Solar JKM495-54HL4M-BDV use vs Jinko Solar JKM425N-54HL4R-B?
Jinko Solar JKM495-54HL4M-BDV uses TOPCon cells; Jinko Solar JKM425N-54HL4R-B 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 JKM495-54HL4M-BDV and Jinko Solar JKM425N-54HL4R-B?
Jinko Solar JKM495-54HL4M-BDV has a 30 years power warranty; Jinko Solar JKM425N-54HL4R-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 Jinko Solar JKM495-54HL4M-BDV and Jinko Solar JKM425N-54HL4R-B bifacial panels?
Jinko Solar JKM495-54HL4M-BDV is bifacial (captures light from both faces); Jinko Solar JKM425N-54HL4R-B is monofacial. Bifacial panels work best on ground mounts or raised structures with a light-coloured surface underneath.

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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.