Longi Solar LR5-72HTD-580M vs Longi Solar LR5-72HTD-585M
VS
The verdict
Identical on every published parameter
All 18 comparable parameters agree, with 1 more left out because at least one datasheet does not publish it. Two records this alike are usually one panel sold under two names, or two bins of the same production line - decide on price and on who you would rather buy from.
How alike are they
18
of 18 comparable
parameters are identical
parameters are identical
identical
differs
not published
01
0 of 18 parameters
What actually differs
Every comparable parameter agrees. The full specification is below.
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 (-0.280 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
580M
19,356 kWh
585M
19,523 kWh
Lifetime gap
167 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
580M
585M
Standard test conditions
25 °C
100.0% of rated power
580 W
585 W
Cool, bright day
40 °C
95.8% of rated power
556 W
560 W
Typical summer roof
55 °C
91.6% of rated power
531 W
536 W
Hot roof
70 °C
87.4% of rated power
507 W
511 W
03
Full specification
Parameter
580M
585M
Difference
Power and efficiency
Rated power
580 Wp
585 Wp
Effectively the same
Module efficiency
22.50 %
22.60 %
Effectively the same
Power density
224.5 Wp/m²
226.5 Wp/m²
Effectively the same
Open-circuit voltage
52.30 V
52.45 V
Effectively the same
Voltage at max power
43.85 V
44.00 V
Effectively the same
Short-circuit current
14.13 A
14.19 A
Effectively the same
Current at max power
13.23 A
13.30 A
Effectively the same
Temperature
Temperature coefficient
-0.280 %/°C
-0.280 %/°C
Same
Mechanical
Dimensions
2278x1134x30 mm
2278x1134x30 mm
Same
Module area
2.583 m²
2.583 m²
Same
Weight
31.8 kg
31.8 kg
Same
Weight per kWp
54.8 kg/kWp
54.4 kg/kWp
Effectively the same
Warranty and degradation
Product warranty
15 yrs
15 yrs
Same
Performance warranty
30 yrs
30 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
144
144
Same
Bifacial
Yes
Yes
Same
04
14,129 panels
Against the whole database
Efficiency
#4,281
vs
#3,716
585M leads by 565 places
Power density
#4,607
vs
#3,557
585M leads by 1,050 places
Heat behaviour
#1,347
vs
#1,347
Tied - the same position in the database
Weight
#9,304
vs
#8,749
585M leads by 555 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#3,946
vs
#3,633
585M leads by 313 places
05
Open the full database
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Longi Solar LR5-72HTD-580M vs Longi Solar LR5-72HTD-575M
One difference: module efficiency
06
Written summary
Checking cache...
07
Questions about this pairing
Which panel is better: Longi Solar LR5-72HTD-580M or Longi Solar LR5-72HTD-585M?
According to our database: Longi Solar LR5-72HTD-585M has higher module efficiency (22.60% vs 22.50%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Longi Solar LR5-72HTD-580M and Longi Solar LR5-72HTD-585M?
Longi Solar LR5-72HTD-580M has a module efficiency of 22.50%, while Longi Solar LR5-72HTD-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 LR5-72HTD-580M use vs Longi Solar LR5-72HTD-585M?
Longi Solar LR5-72HTD-580M uses Monocrystalline cells; Longi Solar LR5-72HTD-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 LR5-72HTD-580M and Longi Solar LR5-72HTD-585M?
Longi Solar LR5-72HTD-580M has a 30 years power warranty; Longi Solar LR5-72HTD-585M 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 Longi Solar LR5-72HTD-580M and Longi Solar LR5-72HTD-585M bifacial panels?
Both Longi Solar LR5-72HTD-580M and Longi Solar LR5-72HTD-585M 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.
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.