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JKM650-670N-66QL6-BDV (650W class) vs SRP-630-BTZ-BG 4 of 18 identical Swap Change panels

Jinko Solar JKM650-670N-66QL6-BDV (650W class) vs Seraphim SRP-630-BTZ-BG

Jinko Solar JKM650-670N-66QL6-BDV (650W class)
JKM650-670N-66QL6-BDV (650W class)
650 Wp 24.06 % TOPCon Bifacial
VS
Seraphim SRP-630-BTZ-BG
SRP-630-BTZ-BG
630 Wp 22.54 % TOPCon Bifacial
The verdict

JKM650-670N-66QL6-BDV (650W class) leads on the differences that matter

The largest is module efficiency: 1.52 pp more efficient. 4 of 18 comparable parameters are identical, with 1 more left out because at least one datasheet does not publish it.

See all 14 differences
How alike are they
4 of 18 comparable
parameters are identical
identical differs not published
01

What actually differs

14 of 18 parameters
Parameter JKM650-670N-66QL6-BDV (650W class) SRP-630-BTZ-BG Difference
Module efficiency 24.06 % 22.54 % 1.52 pp more efficient
Power density 240.6 Wp/m² 225.4 Wp/m² 15.3 Wp/m² higher
Temperature coefficient -0.260 %/°C -0.290 %/°C 0.030 %/°C better in heat
Product warranty 12 yrs 15 yrs 3 yrs longer
Rated power 650 Wp 630 Wp 20 W more power
Open-circuit voltage 50.26 V 56.44 V 6.18 V apart
Module area 2.701 m² 2.795 m² 0.094 m² apart
Short-circuit current 15.98 A 14.07 A 1.91 A apart
Weight per kWp 50.0 kg/kWp 54.9 kg/kWp 4.9 kg/kWp lighter
Weight 32.5 kg 34.6 kg 2.1 kg lighter
Annual degradation 0.35 %/yr 0.40 %/yr 0.05 %/yr slower
Voltage at max power 42.57 V 47.13 V 4.56 V apart
Current at max power 15.27 A 13.37 A 1.90 A apart
Dimensions 2382x1134x30 mm 2465x1134x30 mm 2382x1134x30 mm vs 2465x1134x30 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
JKM650-670N-66QL6-BDV (650W class)
21,978 kWh
SRP-630-BTZ-BG
21,138 kWh
Lifetime gap
840 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario JKM650-670N-66QL6-BDV (650W class) SRP-630-BTZ-BG
Standard test conditions 25 °C 100.0% of rated power 650 W 630 W
Cool, bright day 40 °C 95.7% of rated power 625 W 603 W
Typical summer roof 55 °C 91.3% of rated power 599 W 575 W
Hot roof 70 °C 87.0% of rated power 574 W 548 W
03

Full specification

Parameter JKM650-670N-66QL6-BDV (650W class) SRP-630-BTZ-BG Difference
Power and efficiency
Rated power 650 Wp 630 Wp +20 W for JKM650-670N-66QL6-BDV (650W class)
Module efficiency 24.06 % 22.54 % +1.52 pp for JKM650-670N-66QL6-BDV (650W class)
Power density 240.6 Wp/m² 225.4 Wp/m² +15.3 Wp/m² for JKM650-670N-66QL6-BDV (650W class)
Open-circuit voltage 50.26 V 56.44 V 6.18 V apart
Voltage at max power 42.57 V 47.13 V 4.56 V apart
Short-circuit current 15.98 A 14.07 A 1.91 A apart
Current at max power 15.27 A 13.37 A 1.90 A apart
Temperature
Temperature coefficient -0.260 %/°C -0.290 %/°C +0.030 %/°C for JKM650-670N-66QL6-BDV (650W class)
Mechanical
Dimensions 2382x1134x30 mm 2465x1134x30 mm 2382x1134x30 mm vs 2465x1134x30 mm
Module area 2.701 m² 2.795 m² 0.094 m² apart
Weight 32.5 kg 34.6 kg -2.1 kg for JKM650-670N-66QL6-BDV (650W class)
Weight per kWp 50.0 kg/kWp 54.9 kg/kWp -4.9 kg/kWp for JKM650-670N-66QL6-BDV (650W class)
Warranty and degradation
Product warranty 12 yrs 15 yrs +3 yrs for SRP-630-BTZ-BG
Performance warranty 30 yrs 30 yrs Same
Annual degradation 0.35 %/yr 0.40 %/yr -0.05 %/yr for JKM650-670N-66QL6-BDV (650W class)
Technology
Cell technology TOPCon TOPCon Same
Cell type Monocrystalline Monocrystalline Same
Cell count - 156 Not published by Jinko Solar
Bifacial Yes Yes Same
04

Against the whole database

14,005 panels
Efficiency
#268 vs #3,920
JKM650-670N-66QL6-BDV (650W class) leads by 3,652 places
Power density
#233 vs #3,907
JKM650-670N-66QL6-BDV (650W class) leads by 3,674 places
Heat behaviour
#511 vs #2,165
JKM650-670N-66QL6-BDV (650W class) leads by 1,654 places
Weight
#3,317 vs #9,305
JKM650-670N-66QL6-BDV (650W class) leads by 5,988 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#1,166 vs #2,179
JKM650-670N-66QL6-BDV (650W class) leads by 1,013 places
05

More useful comparisons

Open the full database
Same series, other bin
Jinko Solar JKM650-670N-66QL6-BDV (650W class) vs Jinko Solar JKM650-670N-66QL6-BDV (670W class)
3 differences, the largest is module efficiency
Same series, other bin
Jinko Solar JKM650-670N-66QL6-BDV (650W class) vs Jinko Solar JKM650-670N-66QL6-BDV-F2-EU (670W)
3 differences, the largest is module efficiency
Same series, other bin
Jinko Solar JKM650-670N-66QL6-BDV (650W class) vs Jinko Solar JKM645-670N-66QL6-BDV-L
4 differences, the largest is module efficiency
Same series, other bin
Jinko Solar JKM650-670N-66QL6-BDV (650W class) vs Jinko Solar JKM670N-66QL6-BDV-F4-EU
4 differences, the largest is module efficiency
Same series, other bin
Jinko Solar JKM650-670N-66QL6-BDV (650W class) vs Jinko Solar JKM650-670N-66QL6-BDV (665W class)
3 differences, the largest is module efficiency
Same series, other bin
Jinko Solar JKM650-670N-66QL6-BDV (650W class) vs Jinko Solar JKM650-670N-66QL6-BDV-F2-EU (665W)
3 differences, the largest is module efficiency
06

Written summary

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07

Questions about this pairing

Which panel is better: Jinko Solar JKM650-670N-66QL6-BDV (650W class) or Seraphim SRP-630-BTZ-BG?
According to our database: Jinko Solar JKM650-670N-66QL6-BDV (650 W class) has higher module efficiency (24.06% vs 22.54%); Jinko Solar JKM650-670N-66QL6-BDV (650 W class) tolerates heat better (temp coeff -0.260%/°C vs -0.290%/°C). 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 (650W class) and Seraphim SRP-630-BTZ-BG?
Jinko Solar JKM650-670N-66QL6-BDV (650 W class) has a module efficiency of 24.06%, while Seraphim SRP-630-BTZ-BG is 22.54%. 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 (650W class) use vs Seraphim SRP-630-BTZ-BG?
Jinko Solar JKM650-670N-66QL6-BDV (650 W class) uses TOPCon cells; Seraphim SRP-630-BTZ-BG 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 (650W class) and Seraphim SRP-630-BTZ-BG?
Jinko Solar JKM650-670N-66QL6-BDV (650 W class) has a 30 years power warranty; Seraphim SRP-630-BTZ-BG 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 (650W class) and Seraphim SRP-630-BTZ-BG bifacial panels?
Both Jinko Solar JKM650-670N-66QL6-BDV (650 W class) and Seraphim SRP-630-BTZ-BG 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.
Compare Jinko Solar and Seraphim as manufacturers Portfolio, efficiency, cell technologies and warranty terms

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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.