BDV (655W class) vs BDV-F2-EU (670W) 15 of 18 identical Swap Change panels

Jinko Solar JKM650-670N-66QL6-BDV (655W class) vs Jinko Solar JKM650-670N-66QL6-BDV-F2-EU (670W)

Q: Which panel is better: Jinko Solar JKM650-670N-66QL6-BDV (655W class) or Jinko Solar JKM650-670N-66QL6-BDV-F2-EU (670W)?

According to our database: Jinko Solar JKM650-670N-66QL6-BDV-F2-EU (670W) has higher module efficiency (24.80% vs 24.25%). See the full spec comparison and 30-year energy simulation above for a complete picture.

Q: What is the efficiency of Jinko Solar JKM650-670N-66QL6-BDV (655W class) and Jinko Solar JKM650-670N-66QL6-BDV-F2-EU (670W)?

Jinko Solar JKM650-670N-66QL6-BDV (655W class) has a module efficiency of 24.25%, while Jinko Solar JKM650-670N-66QL6-BDV-F2-EU (670W) is 24.80%. Higher efficiency means more electricity from the same roof area - useful when space is limited.

Q: What cell technology does Jinko Solar JKM650-670N-66QL6-BDV (655W class) use vs Jinko Solar JKM650-670N-66QL6-BDV-F2-EU (670W)?

Jinko Solar JKM650-670N-66QL6-BDV (655W class) uses TOPCon cells; Jinko Solar JKM650-670N-66QL6-BDV-F2-EU (670W) uses TOPCon. Modern n-type technologies (TOPCon, HJT, BC) typically deliver higher efficiency and lower degradation compared to older PERC (p-type) cells.

Q: What is the warranty on Jinko Solar JKM650-670N-66QL6-BDV (655W class) and Jinko Solar JKM650-670N-66QL6-BDV-F2-EU (670W)?

Jinko Solar JKM650-670N-66QL6-BDV (655W class) has a 30 years power warranty; Jinko Solar JKM650-670N-66QL6-BDV-F2-EU (670W) 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.

Q: Are Jinko Solar JKM650-670N-66QL6-BDV (655W class) and Jinko Solar JKM650-670N-66QL6-BDV-F2-EU (670W) bifacial panels?

Both Jinko Solar JKM650-670N-66QL6-BDV (655W class) and Jinko Solar JKM650-670N-66QL6-BDV-F2-EU (670W) 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.

JKM650-670N-66QL6-BDV (655W class)

655 Wp 24.25 % TOPCon Bifacial

Open panel page Datasheet PDF

JKM650-670N-66QL6-BDV-F2-EU (670W)

670 Wp 24.80 % TOPCon Bifacial

Open panel page Datasheet PDF

The verdict

BDV-F2-EU (670W) leads on the differences that matter

The largest is module efficiency: 0.55 pp more efficient. 15 of 18 comparable parameters are identical, with 1 more left out because at least one datasheet does not publish it.

See all 3 differences

How alike are they

15 of 18 comparable
parameters are identical

identical differs not published

What actually differs

3 of 18 parameters

Parameter BDV (655W class) BDV-F2-EU (670W) Difference

Module efficiency 24.25 % 24.80 % 0.55 pp more efficient

Power density 242.5 Wp/m² 248.0 Wp/m² 5.6 Wp/m² higher

Rated power 655 Wp 670 Wp 15 W more power

What it means on a roof

Thirty years of production

Each panel's own declared degradation curve, at 1,200 kWh/kWp a year

Cell temperature

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.

BDV (655W class)

22,148 kWh

BDV-F2-EU (670W)

22,655 kWh

Lifetime gap

507 kWh

Output when it is hot

Rated power carried across the range a module actually sees

Scenario BDV (655W class) BDV-F2-EU (670W)

Standard test conditions 25 °C 100.0% of rated power 655 W 670 W

Cool, bright day 40 °C 96.1% of rated power 629 W 644 W

Typical summer roof 55 °C 92.2% of rated power 604 W 618 W

Hot roof 70 °C 88.3% of rated power 578 W 592 W

Full specification

Parameter BDV (655W class) BDV-F2-EU (670W) Difference

Power and efficiency

Rated power 655 Wp 670 Wp +15 W for BDV-F2-EU (670W)

Module efficiency 24.25 % 24.80 % +0.55 pp for BDV-F2-EU (670W)

Power density 242.5 Wp/m² 248.0 Wp/m² +5.6 Wp/m² for BDV-F2-EU (670W)

Open-circuit voltage 50.44 V 50.98 V Effectively the same

Voltage at max power 42.70 V 43.09 V Effectively the same

Short-circuit current 16.04 A 16.22 A Effectively the same

Current at max power 15.34 A 15.55 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 49.6 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 TOPCon TOPCon Same

Cell type Monocrystalline Monocrystalline Same

Cell count - - Neither datasheet publishes this

Bifacial Yes Yes Same

Against the whole database

14,005 panels

Efficiency

#171 vs #12

BDV-F2-EU (670W) leads by 159 places

Power density

#172 vs #14

BDV-F2-EU (670W) leads by 158 places

Heat behaviour

#511 vs #511

Tied - the same position in the database

Weight

#3,162 vs #2,321

BDV-F2-EU (670W) leads by 841 places

Warranty

#21 vs #21

Tied - the same position in the database

Overall

#984 vs #486

BDV-F2-EU (670W) leads by 498 places

More useful comparisons

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Written summary

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Questions about this pairing

Which panel is better: Jinko Solar JKM650-670N-66QL6-BDV (655W class) or Jinko Solar JKM650-670N-66QL6-BDV-F2-EU (670W)?

According to our database: Jinko Solar JKM650-670N-66QL6-BDV-F2-EU (670 W) has higher module efficiency (24.80% vs 24.25%). See the full spec comparison and 30-year energy simulation above for a complete picture.

What is the efficiency of Jinko Solar JKM650-670N-66QL6-BDV (655W class) and Jinko Solar JKM650-670N-66QL6-BDV-F2-EU (670W)?

Jinko Solar JKM650-670N-66QL6-BDV (655 W class) has a module efficiency of 24.25%, while Jinko Solar JKM650-670N-66QL6-BDV-F2-EU (670 W) is 24.80%. Higher efficiency means more electricity from the same roof area - useful when space is limited.

What cell technology does Jinko Solar JKM650-670N-66QL6-BDV (655W class) use vs Jinko Solar JKM650-670N-66QL6-BDV-F2-EU (670W)?

Jinko Solar JKM650-670N-66QL6-BDV (655 W class) uses TOPCon cells; Jinko Solar JKM650-670N-66QL6-BDV-F2-EU (670 W) 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 Jinko Solar JKM650-670N-66QL6-BDV (655W class) and Jinko Solar JKM650-670N-66QL6-BDV-F2-EU (670W)?

Jinko Solar JKM650-670N-66QL6-BDV (655 W class) has a 30 years power warranty; Jinko Solar JKM650-670N-66QL6-BDV-F2-EU (670 W) 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 JKM650-670N-66QL6-BDV (655W class) and Jinko Solar JKM650-670N-66QL6-BDV-F2-EU (670W) bifacial panels?

Both Jinko Solar JKM650-670N-66QL6-BDV (655 W class) and Jinko Solar JKM650-670N-66QL6-BDV-F2-EU (670 W) 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 158 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.