Skip to main content
54HTB-430M vs 72HTH-585M 9 of 18 identical Swap Change panels

Longi Solar LR5-54HTB-430M vs Longi Solar LR5-72HTH-585M

Longi Solar LR5-54HTB-430M
LR5-54HTB-430M
430 Wp 22.00 %
Open panel page Datasheet PDF
VS
Longi Solar LR5-72HTH-585M
LR5-72HTH-585M
585 Wp 22.60 %
Open panel page Datasheet PDF
The verdict

72HTH-585M leads on the differences that matter

The largest is rated power: 155 W more power. 9 of 18 comparable parameters are identical, with 1 more left out because at least one datasheet does not publish it.

See all 9 differences
How alike are they
9 of 18 comparable
parameters are identical
identical differs not published
01

What actually differs

9 of 18 parameters
Parameter 54HTB-430M 72HTH-585M Difference
Rated power 430 Wp 585 Wp 155 W more power
Module efficiency 22.00 % 22.60 % 0.60 pp more efficient
Weight 20.8 kg 27.2 kg 6.4 kg lighter
Power density 220.2 Wp/m² 226.5 Wp/m² 6.3 Wp/m² higher
Open-circuit voltage 39.43 V 52.36 V 12.93 V apart
Module area 1.953 m² 2.583 m² 0.631 m² apart
Voltage at max power 33.16 V 44.21 V 11.05 V apart
Cell count 108 144 36 cells apart
Dimensions 1722x1134x30 mm 2278x1134x30 mm 1722x1134x30 mm vs 2278x1134x30 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 (-0.290 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
54HTB-430M
14,350 kWh
72HTH-585M
19,523 kWh
Lifetime gap
5,173 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario 54HTB-430M 72HTH-585M
Standard test conditions 25 °C 100.0% of rated power 430 W 585 W
Cool, bright day 40 °C 95.7% of rated power 411 W 560 W
Typical summer roof 55 °C 91.3% of rated power 393 W 534 W
Hot roof 70 °C 87.0% of rated power 374 W 509 W
03

Full specification

Parameter 54HTB-430M 72HTH-585M Difference
Power and efficiency
Rated power 430 Wp 585 Wp +155 W for 72HTH-585M
Module efficiency 22.00 % 22.60 % +0.60 pp for 72HTH-585M
Power density 220.2 Wp/m² 226.5 Wp/m² +6.3 Wp/m² for 72HTH-585M
Open-circuit voltage 39.43 V 52.36 V 12.93 V apart
Voltage at max power 33.16 V 44.21 V 11.05 V apart
Short-circuit current 14.00 A 14.27 A Effectively the same
Current at max power 12.97 A 13.24 A Effectively the same
Temperature
Temperature coefficient -0.290 %/°C -0.290 %/°C Same
Mechanical
Dimensions 1722x1134x30 mm 2278x1134x30 mm 1722x1134x30 mm vs 2278x1134x30 mm
Module area 1.953 m² 2.583 m² 0.631 m² apart
Weight 20.8 kg 27.2 kg -6.4 kg for 54HTB-430M
Weight per kWp 48.4 kg/kWp 46.5 kg/kWp Effectively the same
Warranty and degradation
Product warranty 15 yrs 15 yrs Same
Performance warranty 25 yrs 25 yrs Same
Annual degradation 0.40 %/yr 0.40 %/yr Same
Technology
Cell technology - - Neither datasheet publishes this
Cell type Monocrystalline Monocrystalline Same
Cell count 108 144 36 cells apart
Bifacial No No Same
04

Against the whole database

14,129 panels
Efficiency
#6,580 vs #3,716
72HTH-585M leads by 2,864 places
Power density
#6,544 vs #3,557
72HTH-585M leads by 2,987 places
Heat behaviour
#2,220 vs #2,220
Tied - the same position in the database
Weight
#2,236 vs #1,186
72HTH-585M leads by 1,050 places
Warranty
#9,912 vs #9,912
Tied - the same position in the database
Overall
#10,323 vs #4,515
72HTH-585M leads by 5,808 places
05

More useful comparisons

Open the full database
Same series, other bin
Longi Solar LR5-54HTB-430M vs Longi Solar LR7-72HTH-615M
13 differences, the largest is module efficiency
Same series, other bin
Longi Solar LR5-54HTB-430M vs Longi Solar LR7-72HTH-610M
12 differences, the largest is rated power
Same series, other bin
Longi Solar LR5-54HTB-430M vs Longi Solar LR7-72HTH-605M
12 differences, the largest is rated power
Same series, other bin
Longi Solar LR5-54HTB-430M vs Longi Solar LR5-72HTD-585M
13 differences, the largest is rated power
Same series, other bin
Longi Solar LR5-54HTB-430M vs Longi Solar LR5-72HTD-580M
13 differences, the largest is rated power
Same series, other bin
Longi Solar LR5-54HTB-430M vs Longi Solar LR5-72HTH-580M
9 differences, the largest is rated power
06

Written summary

07

Questions about this pairing

Which panel is better: Longi Solar LR5-54HTB-430M or Longi Solar LR5-72HTH-585M?
According to our database: Longi Solar LR5-72HTH-585M has higher module efficiency (22.60% vs 22.00%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Longi Solar LR5-54HTB-430M and Longi Solar LR5-72HTH-585M?
Longi Solar LR5-54HTB-430M has a module efficiency of 22.00%, while Longi Solar LR5-72HTH-585M is 22.60%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Longi Solar LR5-54HTB-430M use vs Longi Solar LR5-72HTH-585M?
Longi Solar LR5-54HTB-430M uses Monocrystalline cells; Longi Solar LR5-72HTH-585M 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 Longi Solar LR5-54HTB-430M and Longi Solar LR5-72HTH-585M?
Longi Solar LR5-54HTB-430M has a 25 years power warranty; Longi Solar LR5-72HTH-585M has a 25 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.

Shop prices: See 157 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.