Canadian Solar CS6.2-66TM-625 vs Canadian Solar CS6.2-66TM-620
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.
625
20,970 kWh
620
20,802 kWh
Lifetime gap
168 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
625
620
Standard test conditions
25 °C
100.0% of rated power
625 W
620 W
Cool, bright day
40 °C
95.7% of rated power
598 W
593 W
Typical summer roof
55 °C
91.3% of rated power
571 W
566 W
Hot roof
70 °C
87.0% of rated power
543 W
539 W
03
Full specification
Parameter
625
620
Difference
Power and efficiency
Rated power
625 Wp
620 Wp
Effectively the same
Module efficiency
23.10 %
23.00 %
Effectively the same
Power density
231.4 Wp/m²
229.5 Wp/m²
Effectively the same
Open-circuit voltage
48.60 V
48.40 V
Effectively the same
Voltage at max power
41.40 V
41.20 V
Effectively the same
Short-circuit current
16.14 A
16.08 A
Effectively the same
Current at max power
15.11 A
15.06 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
28.1 kg
28.1 kg
Same
Weight per kWp
45.0 kg/kWp
45.3 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
TOPCon
TOPCon
Same
Cell type
Monocrystalline
Monocrystalline
Same
Cell count
132
132
Same
Bifacial
No
No
Same
04
14,005 panels
Against the whole database
Efficiency
#1,570
vs
#1,919
625 leads by 349 places
Power density
#1,513
vs
#2,191
625 leads by 678 places
Heat behaviour
#2,165
vs
#2,165
Tied - the same position in the database
Weight
#572
vs
#690
625 leads by 118 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#2,188
vs
#2,436
625 leads by 248 places
05
Open the full database
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8 differences, the largest is rated power
06
Written summary
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07
Questions about this pairing
Which panel is better: Canadian Solar CS6.2-66TM-625 or Canadian Solar CS6.2-66TM-620?
According to our database: Canadian Solar CS6.2-66TM-625 has higher module efficiency (23.10% vs 23.00%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Canadian Solar CS6.2-66TM-625 and Canadian Solar CS6.2-66TM-620?
Canadian Solar CS6.2-66TM-625 has a module efficiency of 23.10%, while Canadian Solar CS6.2-66TM-620 is 23.00%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Canadian Solar CS6.2-66TM-625 use vs Canadian Solar CS6.2-66TM-620?
Canadian Solar CS6.2-66TM-625 uses TOPCon cells; Canadian Solar CS6.2-66TM-620 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 Canadian Solar CS6.2-66TM-625 and Canadian Solar CS6.2-66TM-620?
Canadian Solar CS6.2-66TM-625 has a 30 years power warranty; Canadian Solar CS6.2-66TM-620 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.
Shop prices: See 40 Canadian 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.