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GSD8K66H-740WT vs LX-720M/210-132+GG 13 of 18 identical Swap Change panels

Sharp GSD8K66H-740WT vs Luxor Solar LX-720M/210-132+GG

Sharp GSD8K66H-740WT
Sharp
GSD8K66H-740WT
740 Wp 23.82 % HJT Bifacial
Open panel page Datasheet PDF
VS
Luxor Solar
LX-720M/210-132+GG
720 Wp 23.39 % HJT Bifacial Incomplete
Open panel page Datasheet PDF
The verdict

5 differences, and they point both ways

The largest is product warranty: 5 yrs longer. 13 of 18 comparable parameters are identical, with 1 more left out because at least one datasheet does not publish it.

See all 5 differences
How alike are they
13 of 18 comparable
parameters are identical
identical differs not published
01

What actually differs

5 of 18 parameters
Parameter GSD8K66H-740WT LX-720M/210-132+GG Difference
Product warranty 25 yrs 30 yrs 5 yrs longer
Module efficiency 23.82 % 23.39 % 0.43 pp more efficient
Temperature coefficient -0.260 %/°C -0.240 %/°C 0.020 %/°C better in heat
Power density 238.2 Wp/m² 231.8 Wp/m² 6.4 Wp/m² higher
Rated power 740 Wp 720 Wp 20 W more power
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
GSD8K66H-740WT
24,828 kWh
LX-720M/210-132+GG
24,157 kWh
Lifetime gap
671 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario GSD8K66H-740WT LX-720M/210-132+GG
Standard test conditions 25 °C 100.0% of rated power 740 W 720 W
Cool, bright day 40 °C 96.1% of rated power 711 W 694 W
Typical summer roof 55 °C 92.2% of rated power 682 W 668 W
Hot roof 70 °C 88.3% of rated power 653 W 642 W
03

Full specification

Parameter GSD8K66H-740WT LX-720M/210-132+GG Difference
Power and efficiency
Rated power 740 Wp 720 Wp +20 W for GSD8K66H-740WT
Module efficiency 23.82 % 23.39 % +0.43 pp for GSD8K66H-740WT
Power density 238.2 Wp/m² 231.8 Wp/m² +6.4 Wp/m² for GSD8K66H-740WT
Open-circuit voltage 51.70 V 51.39 V Effectively the same
Voltage at max power 43.80 V 43.68 V Effectively the same
Short-circuit current 17.76 A 17.54 A Effectively the same
Current at max power 16.91 A 16.49 A Effectively the same
Temperature
Temperature coefficient -0.260 %/°C -0.240 %/°C +0.020 %/°C for LX-720M/210-132+GG
Mechanical
Dimensions 2384x1303x35 mm 2384x1303x35 mm Same
Module area 3.106 m² 3.106 m² Same
Weight 39.0 kg 38.7 kg Effectively the same
Weight per kWp 52.7 kg/kWp 53.8 kg/kWp Effectively the same
Warranty and degradation
Product warranty 25 yrs 30 yrs +5 yrs for LX-720M/210-132+GG
Performance warranty 30 yrs 30 yrs Same
Annual degradation 0.35 %/yr - Not published by Luxor Solar
Technology
Cell technology HJT HJT Same
Cell type Monocrystalline Monocrystalline Same
Cell count 132 132 Same
Bifacial Yes Yes Same
04

Against the whole database

14,005 panels
Efficiency
#418 vs #925
GSD8K66H-740WT leads by 507 places
Power density
#431 vs #1,347
GSD8K66H-740WT leads by 916 places
Heat behaviour
#511 vs #13
LX-720M/210-132+GG leads by 498 places
Weight
#6,344 vs #7,805
GSD8K66H-740WT leads by 1,461 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#12 vs #17
GSD8K66H-740WT leads by 5 places
05

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06

Written summary

07

Questions about this pairing

Which panel is better: Sharp GSD8K66H-740WT or Luxor Solar LX-720M/210-132+GG?
According to our database: Sharp GSD8K66H-740WT has higher module efficiency (23.82% vs 23.39%); Luxor Solar LX-720M/210-132+GG tolerates heat better (temp coeff -0.240%/°C vs -0.260%/°C). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Sharp GSD8K66H-740WT and Luxor Solar LX-720M/210-132+GG?
Sharp GSD8K66H-740WT has a module efficiency of 23.82%, while Luxor Solar LX-720M/210-132+GG is 23.39%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Sharp GSD8K66H-740WT use vs Luxor Solar LX-720M/210-132+GG?
Sharp GSD8K66H-740WT uses HJT cells; Luxor Solar LX-720M/210-132+GG uses HJT. 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 Sharp GSD8K66H-740WT and Luxor Solar LX-720M/210-132+GG?
Sharp GSD8K66H-740WT has a 30 years power warranty; Luxor Solar LX-720M/210-132+GG 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 Sharp GSD8K66H-740WT and Luxor Solar LX-720M/210-132+GG bifacial panels?
Both Sharp GSD8K66H-740WT and Luxor Solar LX-720M/210-132+GG 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.
Compare Sharp and Luxor Solar as manufacturers Portfolio, efficiency, cell technologies and warranty terms

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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.