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GKA210M400W (1/2*4*20) vs GKA210N132 5 of 15 identical Swap Change panels

Gamko New Energy GKA210M400W (1/2*4*20) vs Gamko New Energy GKA210N132

Gamko New Energy
GKA210M400W (1/2*4*20)
400 Wp 23.00 % TOPCon Bifacial Incomplete
Open panel page Datasheet PDF
VS
Gamko New Energy GKA210N132
Gamko New Energy
GKA210N132
750 Wp 24.14 % TOPCon Bifacial Incomplete
Open panel page Datasheet PDF
The verdict

GKA210N132 leads on the differences that matter

The largest is module efficiency: 1.14 pp more efficient. 5 of 15 comparable parameters are identical, with 4 more left out because at least one datasheet does not publish them.

See all 10 differences
How alike are they
5 of 15 comparable
parameters are identical
identical differs not published
01

What actually differs

10 of 15 parameters
Parameter GKA210M400W (1/2*4*20) GKA210N132 Difference
Module efficiency 23.00 % 24.14 % 1.14 pp more efficient
Rated power 400 Wp 750 Wp 350 W more power
Power density 207.7 Wp/m² 241.4 Wp/m² 33.7 Wp/m² higher
Weight 18.0 kg 32.0 kg 14.0 kg lighter
Short-circuit current 9.73 A 19.52 A 9.79 A apart
Module area 1.925 m² 3.106 m² 1.181 m² apart
Current at max power 9.27 A 18.59 A 9.32 A apart
Weight per kWp 45.0 kg/kWp 42.7 kg/kWp 2.3 kg/kWp lighter
Open-circuit voltage 47.14 V 48.41 V 1.27 V apart
Dimensions 2188x880x30 mm 2384x1303x33 mm 2188x880x30 mm vs 2384x1303x33 mm
02

What it means on a roof

Thirty years of production
A 1.0% first-year loss then 0.40% a year, assumed for both panels, at 1,200 kWh/kWp a year
Projected at 25 °C. Not published by Gamko New Energy, so a hotter case cannot be shown without inventing one side of it.
GKA210M400W (1/2*4*20)
13,421 kWh
GKA210N132
25,164 kWh
Lifetime gap
11,743 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario GKA210M400W (1/2*4*20) GKA210N132
Standard test conditions 25 °C 100.0% of rated power - 750 W
Cool, bright day 40 °C 94.9% of rated power - 712 W
Typical summer roof 55 °C 89.8% of rated power - 674 W
Hot roof 70 °C 84.7% of rated power - 635 W
03

Full specification

Parameter GKA210M400W (1/2*4*20) GKA210N132 Difference
Power and efficiency
Rated power 400 Wp 750 Wp +350 W for GKA210N132
Module efficiency 23.00 % 24.14 % +1.14 pp for GKA210N132
Power density 207.7 Wp/m² 241.4 Wp/m² +33.7 Wp/m² for GKA210N132
Open-circuit voltage 47.14 V 48.41 V 1.27 V apart
Voltage at max power 40.99 V 40.34 V Effectively the same
Short-circuit current 9.73 A 19.52 A 9.79 A apart
Current at max power 9.27 A 18.59 A 9.32 A apart
Temperature
Temperature coefficient - -0.340 %/°C Not published by Gamko New Energy
Mechanical
Dimensions 2188x880x30 mm 2384x1303x33 mm 2188x880x30 mm vs 2384x1303x33 mm
Module area 1.925 m² 3.106 m² 1.181 m² apart
Weight 18.0 kg 32.0 kg -14.0 kg for GKA210M400W (1/2*4*20)
Weight per kWp 45.0 kg/kWp 42.7 kg/kWp -2.3 kg/kWp for GKA210N132
Warranty and degradation
Product warranty - 12 yrs Not published by Gamko New Energy
Performance warranty 30 yrs 30 yrs Same
Annual degradation - - Neither datasheet publishes this
Technology
Cell technology TOPCon TOPCon Same
Cell type Monocrystalline Monocrystalline Same
Cell count - 132 Not published by Gamko New Energy
Bifacial Yes Yes Same
04

Against the whole database

14,129 panels
Efficiency
#1,970 vs #238
GKA210N132 leads by 1,732 places
Power density
#10,606 vs #241
GKA210N132 leads by 10,365 places
Heat behaviour
#14,048 vs #8,846
GKA210N132 leads by 5,202 places
Weight
#574 vs #234
GKA210N132 leads by 340 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#11,349 vs #110
GKA210N132 leads by 11,239 places
05

More useful comparisons

Open the full database
Same series, other bin
Gamko New Energy
Gamko New Energy GKA210M400W (1/2*4*20) vs Gamko New Energy GKA210N132-750
10 differences, the largest is module efficiency
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Gamko New Energy
Gamko New Energy GKA210M400W (1/2*4*20) vs Gamko New Energy GKA210N132-745
10 differences, the largest is module efficiency
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Gamko New Energy
Gamko New Energy GKA210M400W (1/2*4*20) vs Gamko New Energy GKA210N132-740
9 differences, the largest is module efficiency
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Gamko New Energy
Gamko New Energy GKA210M400W (1/2*4*20) vs Gamko New Energy GKA210N132-735
9 differences, the largest is module efficiency
Same series, other bin
Gamko New Energy
Gamko New Energy GKA210M400W (1/2*4*20) vs Gamko New Energy GKA210N132-730
9 differences, the largest is rated power
Same series, other bin
Gamko New Energy
Gamko New Energy GKA210M400W (1/2*4*20) vs Gamko New Energy GKA210N132-720W (series)
8 differences, the largest is rated power
06

Written summary

07

Questions about this pairing

Which panel is better: Gamko New Energy GKA210M400W (1/2*4*20) or Gamko New Energy GKA210N132?
According to our database: Gamko New Energy GKA210N132 has higher module efficiency (24.14% vs 23.00%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Gamko New Energy GKA210M400W (1/2*4*20) and Gamko New Energy GKA210N132?
Gamko New Energy GKA210M400 W (1/2*4*20) has a module efficiency of 23.00%, while Gamko New Energy GKA210N132 is 24.14%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Gamko New Energy GKA210M400W (1/2*4*20) use vs Gamko New Energy GKA210N132?
Gamko New Energy GKA210M400 W (1/2*4*20) uses TOPCon cells; Gamko New Energy GKA210N132 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 Gamko New Energy GKA210M400W (1/2*4*20) and Gamko New Energy GKA210N132?
Gamko New Energy GKA210M400 W (1/2*4*20) has a 30 years power warranty; Gamko New Energy GKA210N132 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 Gamko New Energy GKA210M400W (1/2*4*20) and Gamko New Energy GKA210N132 bifacial panels?
Both Gamko New Energy GKA210M400 W (1/2*4*20) and Gamko New Energy GKA210N132 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.

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.