GCL GCL-NT12/66GDF-725 vs GCL GCL-NT12/66GDF-735
VS
The verdict
735 leads on the differences that matter
The largest is module efficiency: 0.32 pp more efficient. 16 of 19 comparable parameters are identical.
See all 3 differencesHow alike are they
16
of 19 comparable
parameters are identical
parameters are identical
identical
differs
01
3 of 19 parameters
What actually differs
Parameter
725
735
Difference
Module efficiency
23.34 %
23.66 %
0.32 pp more efficient
Power density
233.4 Wp/m²
236.6 Wp/m²
3.2 Wp/m² higher
Rated power
725 Wp
735 Wp
10 W more power
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.
725
24,325 kWh
735
24,661 kWh
Lifetime gap
336 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
725
735
Standard test conditions
25 °C
100.0% of rated power
725 W
735 W
Cool, bright day
40 °C
95.7% of rated power
693 W
703 W
Typical summer roof
55 °C
91.3% of rated power
662 W
671 W
Hot roof
70 °C
87.0% of rated power
630 W
639 W
03
Full specification
Parameter
725
735
Difference
Power and efficiency
Rated power
725 Wp
735 Wp
+10 W for 735
Module efficiency
23.34 %
23.66 %
+0.32 pp for 735
Power density
233.4 Wp/m²
236.6 Wp/m²
+3.2 Wp/m² for 735
Open-circuit voltage
48.80 V
49.24 V
Effectively the same
Voltage at max power
41.03 V
41.41 V
Effectively the same
Short-circuit current
18.60 A
18.68 A
Effectively the same
Current at max power
17.67 A
17.75 A
Effectively the same
Temperature
Temperature coefficient
-0.290 %/°C
-0.290 %/°C
Same
Mechanical
Dimensions
2384x1303x33 mm
2384x1303x33 mm
Same
Module area
3.106 m²
3.106 m²
Same
Weight
38.2 kg
38.2 kg
Same
Weight per kWp
52.7 kg/kWp
52.0 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
Yes
Yes
Same
04
14,005 panels
Against the whole database
Efficiency
#943
vs
#602
735 leads by 341 places
Power density
#936
vs
#582
735 leads by 354 places
Heat behaviour
#2,165
vs
#2,165
Tied - the same position in the database
Weight
#6,337
vs
#5,413
735 leads by 924 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#403
vs
#244
735 leads by 159 places
05
Open the full database
More useful comparisons
Same series, other bin
GCL GCL-NT12/66GDF-725 vs GCL GCL-NT12/66GDF-740
3 differences, the largest is module efficiency
Same series, other bin
GCL GCL-NT12/66GDF-725 vs GCL GCL-NT12/66GDF-730
The same specification on paper
Same series, other bin
GCL GCL-NT12/66GDF-725 vs GCL NT12/66GDF-730
The same specification on paper
Same series, other bin
GCL GCL-NT12/66GDF-725 vs GCL NT12/66GDF-725
The same specification on paper
Same series, other bin
GCL GCL-NT12/66GDF-725 vs GCL GCL-NT12/66GDF 725
The same specification on paper
Same series, other bin
GCL GCL-NT12/66GDF-725 vs GCL GCL-NT12/66GDF-720
The same specification on paper
06
Written summary
Checking cache...
07
Questions about this pairing
Which panel is better: GCL GCL-NT12/66GDF-725 or GCL GCL-NT12/66GDF-735?
According to our database: GCL GCL-NT12/66GDF-735 has higher module efficiency (23.66% vs 23.34%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of GCL GCL-NT12/66GDF-725 and GCL GCL-NT12/66GDF-735?
GCL GCL-NT12/66GDF-725 has a module efficiency of 23.34%, while GCL GCL-NT12/66GDF-735 is 23.66%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does GCL GCL-NT12/66GDF-725 use vs GCL GCL-NT12/66GDF-735?
GCL GCL-NT12/66GDF-725 uses TOPCon cells; GCL GCL-NT12/66GDF-735 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 GCL GCL-NT12/66GDF-725 and GCL GCL-NT12/66GDF-735?
GCL GCL-NT12/66GDF-725 has a 30 years power warranty; GCL GCL-NT12/66GDF-735 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 GCL GCL-NT12/66GDF-725 and GCL GCL-NT12/66GDF-735 bifacial panels?
Both GCL GCL-NT12/66GDF-725 and GCL GCL-NT12/66GDF-735 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.
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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.