Canadian Solar CS6.2-66TM-635 vs Canadian Solar CS6R-450T
VS
The verdict
CS6.2-66TM-635 leads on the differences that matter
The largest is rated power: 185 W more power. 7 of 19 comparable parameters are identical.
See all 12 differencesHow alike are they
7
of 19 comparable
parameters are identical
parameters are identical
identical
differs
01
12 of 19 parameters
What actually differs
Parameter
CS6.2-66TM-635
CS6R-450T
Difference
Rated power
635 Wp
450 Wp
185 W more power
Module efficiency
23.50 %
23.00 %
0.50 pp more efficient
Weight
28.1 kg
21.3 kg
6.8 kg lighter
Open-circuit voltage
49.40 V
39.80 V
9.60 V apart
Short-circuit current
16.22 A
14.16 A
2.06 A apart
Module area
2.701 m²
1.953 m²
0.748 m² apart
Power density
235.1 Wp/m²
230.4 Wp/m²
4.6 Wp/m² higher
Weight per kWp
44.3 kg/kWp
47.3 kg/kWp
3.1 kg/kWp lighter
Voltage at max power
41.90 V
32.80 V
9.10 V apart
Cell count
132
108
24 cells apart
Current at max power
15.18 A
13.72 A
1.46 A apart
Dimensions
2382x1134x30 mm
1722x1134x30 mm
2382x1134x30 mm vs 1722x1134x30 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
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.
CS6.2-66TM-635
21,306 kWh
CS6R-450T
15,098 kWh
Lifetime gap
6,208 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
CS6.2-66TM-635
CS6R-450T
Standard test conditions
25 °C
100.0% of rated power
635 W
450 W
Cool, bright day
40 °C
95.7% of rated power
607 W
430 W
Typical summer roof
55 °C
91.3% of rated power
580 W
411 W
Hot roof
70 °C
87.0% of rated power
552 W
391 W
03
Full specification
Parameter
CS6.2-66TM-635
CS6R-450T
Difference
Power and efficiency
Rated power
635 Wp
450 Wp
+185 W for CS6.2-66TM-635
Module efficiency
23.50 %
23.00 %
+0.50 pp for CS6.2-66TM-635
Power density
235.1 Wp/m²
230.4 Wp/m²
+4.6 Wp/m² for CS6.2-66TM-635
Open-circuit voltage
49.40 V
39.80 V
9.60 V apart
Voltage at max power
41.90 V
32.80 V
9.10 V apart
Short-circuit current
16.22 A
14.16 A
2.06 A apart
Current at max power
15.18 A
13.72 A
1.46 A apart
Temperature
Temperature coefficient
-0.290 %/°C
-0.290 %/°C
Same
Mechanical
Dimensions
2382x1134x30 mm
1722x1134x30 mm
2382x1134x30 mm vs 1722x1134x30 mm
Module area
2.701 m²
1.953 m²
0.748 m² apart
Weight
28.1 kg
21.3 kg
-6.8 kg for CS6R-450T
Weight per kWp
44.3 kg/kWp
47.3 kg/kWp
-3.1 kg/kWp for CS6.2-66TM-635
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
108
24 cells apart
Bifacial
No
No
Same
04
14,129 panels
Against the whole database
Efficiency
#749
vs
#1,970
CS6.2-66TM-635 leads by 1,221 places
Power density
#777
vs
#1,758
CS6.2-66TM-635 leads by 981 places
Heat behaviour
#2,220
vs
#2,220
Tied - the same position in the database
Weight
#408
vs
#1,641
CS6.2-66TM-635 leads by 1,233 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#1,704
vs
#8,470
CS6.2-66TM-635 leads by 6,766 places
05
Open the full database
More useful comparisons
Same series, other bin
Canadian Solar CS6.2-66TM-635 vs Canadian Solar CS6.2-66TM-630
One difference: module efficiency
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Canadian Solar CS6.2-66TM-635 vs Canadian Solar CS6.2-66TM-625
3 differences, the largest is module efficiency
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Canadian Solar CS6.2-66TM-635 vs Canadian Solar CS6.2-66TM-620
4 differences, the largest is module efficiency
Same series, other bin
Canadian Solar CS6.2-66TM-635 vs Canadian Solar CS6.2-66TM-615
4 differences, the largest is module efficiency
Same series, other bin
Canadian Solar CS6.2-66TM-635 vs Canadian Solar CS6.2-66TM-610
5 differences, the largest is module efficiency
Same series, other bin
Canadian Solar CS6.2-66TM-635 vs Canadian Solar CS6W-600T
9 differences, the largest is rated power
06
Written summary
Checking cache...
07
Questions about this pairing
Which panel is better: Canadian Solar CS6.2-66TM-635 or Canadian Solar CS6R-450T?
According to our database: Canadian Solar CS6.2-66TM-635 has higher module efficiency (23.50% 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-635 and Canadian Solar CS6R-450T?
Canadian Solar CS6.2-66TM-635 has a module efficiency of 23.50%, while Canadian Solar CS6R-450T 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-635 use vs Canadian Solar CS6R-450T?
Canadian Solar CS6.2-66TM-635 uses TOPCon cells; Canadian Solar CS6R-450T 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-635 and Canadian Solar CS6R-450T?
Canadian Solar CS6.2-66TM-635 has a 30 years power warranty; Canadian Solar CS6R-450T 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 30 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.