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710-8DBNM vs 705-8NM 12 of 18 identical Swap Change panels

Recom RCM-710-8DBNM vs Recom RCM-705-8NM

Recom RCM-710-8DBNM
Recom
RCM-710-8DBNM
710 Wp 22.90 % TOPCon Bifacial
Open panel page Datasheet PDF
VS
Recom RCM-705-8NM
Recom
RCM-705-8NM
705 Wp 22.70 % TOPCon
Open panel page Datasheet PDF
The verdict

705-8NM leads on the differences that matter

The largest is weight: 3.9 kg lighter. 12 of 18 comparable parameters are identical, with 1 more left out because at least one datasheet does not publish it.

See all 6 differences
How alike are they
12 of 18 comparable
parameters are identical
identical differs not published
01

What actually differs

6 of 18 parameters
Parameter 710-8DBNM 705-8NM Difference
Weight 37.8 kg 33.9 kg 3.9 kg lighter
Weight per kWp 53.2 kg/kWp 48.1 kg/kWp 5.2 kg/kWp lighter
Temperature coefficient -0.290 %/°C -0.300 %/°C 0.010 %/°C better in heat
Module efficiency 22.90 % 22.70 % 0.20 pp more efficient
Bifacial Yes No Yes vs No
Dimensions 2384x1303x33 mm 2384x1303x30 mm 2384x1303x33 mm vs 2384x1303x30 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
710-8DBNM
23,822 kWh
705-8NM
23,654 kWh
Lifetime gap
168 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario 710-8DBNM 705-8NM
Standard test conditions 25 °C 100.0% of rated power 710 W 705 W
Cool, bright day 40 °C 95.5% of rated power 679 W 673 W
Typical summer roof 55 °C 91.0% of rated power 648 W 642 W
Hot roof 70 °C 86.5% of rated power 617 W 610 W
03

Full specification

Parameter 710-8DBNM 705-8NM Difference
Power and efficiency
Rated power 710 Wp 705 Wp Effectively the same
Module efficiency 22.90 % 22.70 % +0.20 pp for 710-8DBNM
Power density 228.6 Wp/m² 227.0 Wp/m² Effectively the same
Open-circuit voltage 48.87 V 48.50 V Effectively the same
Voltage at max power 40.76 V 40.70 V Effectively the same
Short-circuit current 18.43 A 18.31 A Effectively the same
Current at max power 17.42 A 17.33 A Effectively the same
Temperature
Temperature coefficient -0.290 %/°C -0.300 %/°C +0.010 %/°C for 710-8DBNM
Mechanical
Dimensions 2384x1303x33 mm 2384x1303x30 mm 2384x1303x33 mm vs 2384x1303x30 mm
Module area 3.106 m² 3.106 m² Same
Weight 37.8 kg 33.9 kg -3.9 kg for 705-8NM
Weight per kWp 53.2 kg/kWp 48.1 kg/kWp -5.2 kg/kWp for 705-8NM
Warranty and degradation
Product warranty 30 yrs 30 yrs Same
Performance warranty 30 yrs 30 yrs Same
Annual degradation 0.40 %/yr 0.40 %/yr Same
Technology
Cell technology TOPCon TOPCon Same
Cell type Monocrystalline Monocrystalline Same
Cell count 132 - Not published by Recom
Bifacial Yes No Yes vs No
04

Against the whole database

14,005 panels
Efficiency
#2,359 vs #3,307
710-8DBNM leads by 948 places
Power density
#2,474 vs #3,361
710-8DBNM leads by 887 places
Heat behaviour
#2,165 vs #6,093
710-8DBNM leads by 3,928 places
Weight
#7,077 vs #2,052
705-8NM leads by 5,025 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#56 vs #77
710-8DBNM leads by 21 places
05

More useful comparisons

Open the full database
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Recom RCM-710-8DBNM vs Recom RCM-725-8DBNM
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Recom RCM-710-8DBNM vs Recom RCM-720-8DBNM
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Recom RCM-710-8DBNM vs Recom RCM-715-8DBNM
The same specification on paper
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Recom RCM-710-8DBNM vs Recom RCM-715-8NM
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Recom RCM-710-8DBNM vs Recom RCM-710-8NM
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06

Written summary

07

Questions about this pairing

Which panel is better: Recom RCM-710-8DBNM or Recom RCM-705-8NM?
According to our database: Recom RCM-710-8DBNM has higher module efficiency (22.90% vs 22.70%); Recom RCM-710-8DBNM tolerates heat better (temp coeff -0.290%/°C vs -0.300%/°C). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Recom RCM-710-8DBNM and Recom RCM-705-8NM?
Recom RCM-710-8DBNM has a module efficiency of 22.90%, while Recom RCM-705-8NM is 22.70%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Recom RCM-710-8DBNM use vs Recom RCM-705-8NM?
Recom RCM-710-8DBNM uses TOPCon cells; Recom RCM-705-8NM uses TOPCon. 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 Recom RCM-710-8DBNM and Recom RCM-705-8NM?
Recom RCM-710-8DBNM has a 30 years power warranty; Recom RCM-705-8NM 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 Recom RCM-710-8DBNM and Recom RCM-705-8NM bifacial panels?
Recom RCM-710-8DBNM is bifacial (captures light from both faces); Recom RCM-705-8NM is monofacial. Bifacial panels work best on ground mounts or raised structures with a light-coloured surface underneath.

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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.