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630M vs 635M 18 of 19 identical Swap Change panels

Longi Solar LR7-72HVH-630M vs Longi Solar LR7-72HVH-635M

LR7-72HVH-630M
630 Wp 23.30 % N-type
Open panel page Datasheet PDF
VS
LR7-72HVH-635M
635 Wp 23.50 % N-type
Open panel page Datasheet PDF
The verdict

635M leads on the differences that matter

The largest is module efficiency: 0.20 pp more efficient. 18 of 19 comparable parameters are identical.

See the one difference
How alike are they
18 of 19 comparable
parameters are identical
identical differs
01

What actually differs

1 of 19 parameters
Parameter 630M 635M Difference
Module efficiency 23.30 % 23.50 % 0.20 pp more efficient
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 (-0.260 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
630M
21,302 kWh
635M
21,471 kWh
Lifetime gap
169 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario 630M 635M
Standard test conditions 25 °C 100.0% of rated power 630 W 635 W
Cool, bright day 40 °C 96.1% of rated power 605 W 610 W
Typical summer roof 55 °C 92.2% of rated power 581 W 585 W
Hot roof 70 °C 88.3% of rated power 556 W 561 W
03

Full specification

Parameter 630M 635M Difference
Power and efficiency
Rated power 630 Wp 635 Wp Effectively the same
Module efficiency 23.30 % 23.50 % +0.20 pp for 635M
Power density 233.2 Wp/m² 235.1 Wp/m² Effectively the same
Open-circuit voltage 53.50 V 53.60 V Effectively the same
Voltage at max power 44.16 V 44.26 V Effectively the same
Short-circuit current 14.97 A 15.05 A Effectively the same
Current at max power 14.27 A 14.35 A Effectively the same
Temperature
Temperature coefficient -0.260 %/°C -0.260 %/°C Same
Mechanical
Dimensions 2382x1134x30 mm 2382x1134x30 mm Same
Module area 2.701 m² 2.701 m² Same
Weight 28.5 kg 28.5 kg Same
Weight per kWp 45.2 kg/kWp 44.9 kg/kWp Effectively the same
Warranty and degradation
Product warranty 15 yrs 15 yrs Same
Performance warranty 30 yrs 30 yrs Same
Annual degradation 0.35 %/yr 0.35 %/yr Same
Technology
Cell technology N-type N-type Same
Cell type Monocrystalline Monocrystalline Same
Cell count 144 144 Same
Bifacial No No Same
04

Against the whole database

14,129 panels
Efficiency
#1,057 vs #749
635M leads by 308 places
Power density
#1,042 vs #777
635M leads by 265 places
Heat behaviour
#515 vs #515
Tied - the same position in the database
Weight
#655 vs #560
635M leads by 95 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#1,594 vs #1,413
635M leads by 181 places
05

More useful comparisons

Open the full database
Same manufacturer
Longi Solar LR7-72HVH-630M vs Longi Solar LR7-72HVHF-670M
6 differences, the largest is module efficiency
Same manufacturer
Longi Solar LR7-72HVH-630M vs Longi Solar LR8-66HYD-670M
13 differences, the largest is module efficiency
Same manufacturer
Longi Solar LR7-72HVH-630M vs Longi Solar LR7-72HVH-670M
6 differences, the largest is module efficiency
Same manufacturer
Longi Solar LR7-72HVH-630M vs Longi Solar LR7-72HVHF-665M
6 differences, the largest is module efficiency
Same manufacturer
Longi Solar LR7-72HVH-630M vs Longi Solar LR7-72HVDF-665M
8 differences, the largest is module efficiency
Same manufacturer
Longi Solar LR7-72HVH-630M vs Longi Solar LR8-66HVD-665M
12 differences, the largest is module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: Longi Solar LR7-72HVH-630M or Longi Solar LR7-72HVH-635M?
According to our database: Longi Solar LR7-72HVH-635M has higher module efficiency (23.50% vs 23.30%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Longi Solar LR7-72HVH-630M and Longi Solar LR7-72HVH-635M?
Longi Solar LR7-72HVH-630M has a module efficiency of 23.30%, while Longi Solar LR7-72HVH-635M is 23.50%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Longi Solar LR7-72HVH-630M use vs Longi Solar LR7-72HVH-635M?
Longi Solar LR7-72HVH-630M uses N-type cells; Longi Solar LR7-72HVH-635M uses N-type. 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 LR7-72HVH-630M and Longi Solar LR7-72HVH-635M?
Longi Solar LR7-72HVH-630M has a 30 years power warranty; Longi Solar LR7-72HVH-635M 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.

Shop prices: 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.