Canadian Solar CS6W-535MB-AG vs Canadian Solar CS7N-670MB-AG
VS
The verdict
CS7N-670MB-AG leads on the differences that matter
The largest is module efficiency: 0.90 pp more efficient. 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
CS6W-535MB-AG
CS7N-670MB-AG
Difference
Module efficiency
20.70 %
21.60 %
0.90 pp more efficient
Rated power
535 Wp
670 Wp
135 W more power
Weight
32.3 kg
37.8 kg
5.5 kg lighter
Power density
207.1 Wp/m²
215.7 Wp/m²
8.6 Wp/m² higher
Short-circuit current
13.85 A
18.55 A
4.70 A apart
Module area
2.583 m²
3.106 m²
0.523 m² apart
Open-circuit voltage
49.00 V
45.80 V
3.20 V apart
Weight per kWp
60.4 kg/kWp
56.4 kg/kWp
4.0 kg/kWp lighter
Current at max power
13.02 A
17.32 A
4.30 A apart
Cell count
144
132
12 cells apart
Voltage at max power
41.10 V
38.70 V
2.40 V apart
Dimensions
2278x1134x30 mm
2384x1303x33 mm
2278x1134x30 mm vs 2384x1303x33 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 (-0.340 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
CS6W-535MB-AG
17,618 kWh
CS7N-670MB-AG
22,064 kWh
Lifetime gap
4,446 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
CS6W-535MB-AG
CS7N-670MB-AG
Standard test conditions
25 °C
100.0% of rated power
535 W
670 W
Cool, bright day
40 °C
94.9% of rated power
508 W
636 W
Typical summer roof
55 °C
89.8% of rated power
480 W
602 W
Hot roof
70 °C
84.7% of rated power
453 W
567 W
03
Full specification
Parameter
CS6W-535MB-AG
CS7N-670MB-AG
Difference
Power and efficiency
Rated power
535 Wp
670 Wp
+135 W for CS7N-670MB-AG
Module efficiency
20.70 %
21.60 %
+0.90 pp for CS7N-670MB-AG
Power density
207.1 Wp/m²
215.7 Wp/m²
+8.6 Wp/m² for CS7N-670MB-AG
Open-circuit voltage
49.00 V
45.80 V
3.20 V apart
Voltage at max power
41.10 V
38.70 V
2.40 V apart
Short-circuit current
13.85 A
18.55 A
4.70 A apart
Current at max power
13.02 A
17.32 A
4.30 A apart
Temperature
Temperature coefficient
-0.340 %/°C
-0.340 %/°C
Same
Mechanical
Dimensions
2278x1134x30 mm
2384x1303x33 mm
2278x1134x30 mm vs 2384x1303x33 mm
Module area
2.583 m²
3.106 m²
0.523 m² apart
Weight
32.3 kg
37.8 kg
-5.5 kg for CS6W-535MB-AG
Weight per kWp
60.4 kg/kWp
56.4 kg/kWp
-4.0 kg/kWp for CS7N-670MB-AG
Warranty and degradation
Product warranty
12 yrs
12 yrs
Same
Performance warranty
30 yrs
30 yrs
Same
Annual degradation
0.45 %/yr
0.45 %/yr
Same
Technology
Cell technology
PERC
PERC
Same
Cell type
Monocrystalline
Monocrystalline
Same
Cell count
144
132
12 cells apart
Bifacial
Yes
Yes
Same
04
14,005 panels
Against the whole database
Efficiency
#10,764
vs
#7,652
CS7N-670MB-AG leads by 3,112 places
Power density
#10,764
vs
#7,644
CS7N-670MB-AG leads by 3,120 places
Heat behaviour
#8,778
vs
#8,778
Tied - the same position in the database
Weight
#12,445
vs
#10,647
CS7N-670MB-AG leads by 1,798 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#8,367
vs
#2,462
CS7N-670MB-AG leads by 5,905 places
05
Open the full database
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06
Written summary
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07
Questions about this pairing
Which panel is better: Canadian Solar CS6W-535MB-AG or Canadian Solar CS7N-670MB-AG?
According to our database: Canadian Solar CS7N-670MB-AG has higher module efficiency (21.60% vs 20.70%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Canadian Solar CS6W-535MB-AG and Canadian Solar CS7N-670MB-AG?
Canadian Solar CS6W-535MB-AG has a module efficiency of 20.70%, while Canadian Solar CS7N-670MB-AG is 21.60%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Canadian Solar CS6W-535MB-AG use vs Canadian Solar CS7N-670MB-AG?
Canadian Solar CS6W-535MB-AG uses PERC cells; Canadian Solar CS7N-670MB-AG uses PERC. 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 CS6W-535MB-AG and Canadian Solar CS7N-670MB-AG?
Canadian Solar CS6W-535MB-AG has a 30 years power warranty; Canadian Solar CS7N-670MB-AG 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 Canadian Solar CS6W-535MB-AG and Canadian Solar CS7N-670MB-AG bifacial panels?
Both Canadian Solar CS6W-535MB-AG and Canadian Solar CS7N-670MB-AG 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 38 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.