GCL-M10/72GDF-B-540 vs LR5-72HBD-540M 11 of 18 identical Swap Change panels

GCL GCL-M10/72GDF-B-540 vs Longi Solar LR5-72HBD-540M

Q: Which panel is better: GCL GCL-M10/72GDF-B-540 or Longi Solar LR5-72HBD-540M?

According to our database: Longi Solar LR5-72HBD-540M has higher module efficiency (20.90% vs 20.60%); Longi Solar LR5-72HBD-540M tolerates heat better (temp coeff -0.340%/°C vs -0.350%/°C). See the full spec comparison and 30-year energy simulation above for a complete picture.

Q: What is the efficiency of GCL GCL-M10/72GDF-B-540 and Longi Solar LR5-72HBD-540M?

GCL GCL-M10/72GDF-B-540 has a module efficiency of 20.60%, while Longi Solar LR5-72HBD-540M is 20.90%. Higher efficiency means more electricity from the same roof area - useful when space is limited.

Q: What cell technology does GCL GCL-M10/72GDF-B-540 use vs Longi Solar LR5-72HBD-540M?

GCL GCL-M10/72GDF-B-540 uses PERC cells; Longi Solar LR5-72HBD-540M uses Monocrystalline. Modern n-type technologies (TOPCon, HJT, BC) typically deliver higher efficiency and lower degradation compared to older PERC (p-type) cells.

Q: What is the warranty on GCL GCL-M10/72GDF-B-540 and Longi Solar LR5-72HBD-540M?

GCL GCL-M10/72GDF-B-540 has a 30 years power warranty; Longi Solar LR5-72HBD-540M 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.

Q: Are GCL GCL-M10/72GDF-B-540 and Longi Solar LR5-72HBD-540M bifacial panels?

Both GCL GCL-M10/72GDF-B-540 and Longi Solar LR5-72HBD-540M 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.

GCL-M10/72GDF-B-540

540 Wp 20.60 % PERC Bifacial

Open panel page Datasheet PDF

LR5-72HBD-540M

540 Wp 20.90 % Bifacial

Open panel page Datasheet PDF

The verdict

LR5-72HBD-540M leads on the differences that matter

The largest is module efficiency: 0.30 pp more efficient. 11 of 18 comparable parameters are identical, with 1 more left out because at least one datasheet does not publish it.

See all 7 differences

How alike are they

11 of 18 comparable
parameters are identical

identical differs not published

What actually differs

7 of 18 parameters

Parameter GCL-M10/72GDF-B-540 LR5-72HBD-540M Difference

Module efficiency 20.60 % 20.90 % 0.30 pp more efficient

Temperature coefficient -0.350 %/°C -0.340 %/°C 0.010 %/°C better in heat

Power density 205.8 Wp/m² 209.0 Wp/m² 3.3 Wp/m² higher

Weight 33.2 kg 31.8 kg 1.4 kg lighter

Module area 2.624 m² 2.583 m² 0.041 m² apart

Weight per kWp 61.5 kg/kWp 58.9 kg/kWp 2.6 kg/kWp lighter

Dimensions 2290x1146x30 mm 2278x1134x30 mm 2290x1146x30 mm vs 2278x1134x30 mm

What it means on a roof

Thirty years of production

Each panel's own declared degradation curve, at 1,200 kWh/kWp a year

Cell temperature

GCL-M10/72GDF-B-540

17,783 kWh

LR5-72HBD-540M

17,783 kWh

Lifetime gap

No difference

Output when it is hot

Rated power carried across the range a module actually sees

Scenario GCL-M10/72GDF-B-540 LR5-72HBD-540M

Standard test conditions 25 °C 100.0% of rated power 540 W 540 W

Cool, bright day 40 °C 94.8% of rated power 512 W 512 W

Typical summer roof 55 °C 89.5% of rated power 483 W 485 W

Hot roof 70 °C 84.2% of rated power 455 W 457 W

Full specification

Parameter GCL-M10/72GDF-B-540 LR5-72HBD-540M Difference

Power and efficiency

Rated power 540 Wp 540 Wp Same

Module efficiency 20.60 % 20.90 % +0.30 pp for LR5-72HBD-540M

Power density 205.8 Wp/m² 209.0 Wp/m² +3.3 Wp/m² for LR5-72HBD-540M

Open-circuit voltage 49.24 V 49.50 V Effectively the same

Voltage at max power 41.45 V 41.65 V Effectively the same

Short-circuit current 13.78 A 13.85 A Effectively the same

Current at max power 13.03 A 12.97 A Effectively the same

Temperature

Temperature coefficient -0.350 %/°C -0.340 %/°C +0.010 %/°C for LR5-72HBD-540M

Mechanical

Dimensions 2290x1146x30 mm 2278x1134x30 mm 2290x1146x30 mm vs 2278x1134x30 mm

Module area 2.624 m² 2.583 m² 0.041 m² apart

Weight 33.2 kg 31.8 kg -1.4 kg for LR5-72HBD-540M

Weight per kWp 61.5 kg/kWp 58.9 kg/kWp -2.6 kg/kWp for LR5-72HBD-540M

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 - Not published by Longi Solar

Cell type Monocrystalline Monocrystalline Same

Cell count 144 144 Same

Bifacial Yes Yes Same

Against the whole database

14,129 panels

Efficiency

#11,172 vs #10,148

LR5-72HBD-540M leads by 1,024 places

Power density

#11,223 vs #10,176

LR5-72HBD-540M leads by 1,047 places

Heat behaviour

#10,489 vs #8,846

LR5-72HBD-540M leads by 1,643 places

Weight

#12,749 vs #12,026

LR5-72HBD-540M leads by 723 places

Warranty

#21 vs #21

Tied - the same position in the database

Overall

#8,376 vs #7,953

LR5-72HBD-540M leads by 423 places

More useful comparisons

Open the full database

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GCL GCL-M10/72GDF-B-540 vs GCL GCL-M10/72GDF-B-555

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GCL GCL-M10/72GDF-B-540 vs GCL GCL-M10/72GDF-B-550

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Same series, other bin

GCL GCL-M10/72GDF-B-540 vs GCL GCL-M10/72GDF-B-545

One difference: module efficiency

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GCL GCL-M10/72GDF-B-540 vs GCL GCL-M10/72GDF-B-535

One difference: module efficiency

Same series, other bin

Longi Solar LR5-72HBD-540M vs Longi Solar LR7-72HVDF-655M

14 differences, the largest is module efficiency

Same series, other bin

Longi Solar LR5-72HBD-540M vs Longi Solar LR7-72HVHF-655M

15 differences, the largest is module efficiency

Written summary

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Questions about this pairing

Which panel is better: GCL GCL-M10/72GDF-B-540 or Longi Solar LR5-72HBD-540M?

According to our database: Longi Solar LR5-72HBD-540M has higher module efficiency (20.90% vs 20.60%); Longi Solar LR5-72HBD-540M tolerates heat better (temp coeff -0.340%/°C vs -0.350%/°C). See the full spec comparison and 30-year energy simulation above for a complete picture.

What is the efficiency of GCL GCL-M10/72GDF-B-540 and Longi Solar LR5-72HBD-540M?

GCL GCL-M10/72GDF-B-540 has a module efficiency of 20.60%, while Longi Solar LR5-72HBD-540M is 20.90%. Higher efficiency means more electricity from the same roof area - useful when space is limited.

What cell technology does GCL GCL-M10/72GDF-B-540 use vs Longi Solar LR5-72HBD-540M?

GCL GCL-M10/72GDF-B-540 uses PERC cells; Longi Solar LR5-72HBD-540M uses Monocrystalline. 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-M10/72GDF-B-540 and Longi Solar LR5-72HBD-540M?

GCL GCL-M10/72GDF-B-540 has a 30 years power warranty; Longi Solar LR5-72HBD-540M 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-M10/72GDF-B-540 and Longi Solar LR5-72HBD-540M bifacial panels?

Both GCL GCL-M10/72GDF-B-540 and Longi Solar LR5-72HBD-540M 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 GCL and Longi Solar as manufacturers Portfolio, efficiency, cell technologies and warranty terms

Shop prices: See 3 GCL offers · See 152 Longi 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.