Sunpro Power SPDG500-N120M10 vs Sunpro Power SPDG440-N108M10
VS
The verdict
SPDG500-N120M10 leads on the differences that matter
The largest is rated power: 60 W more power. 9 of 19 comparable parameters are identical.
See all 10 differencesHow alike are they
9
of 19 comparable
parameters are identical
parameters are identical
identical
differs
01
10 of 19 parameters
What actually differs
Parameter
SPDG500-N120M10
SPDG440-N108M10
Difference
Rated power
500 Wp
440 Wp
60 W more power
Module efficiency
23.08 %
22.53 %
0.55 pp more efficient
Weight
26.0 kg
23.3 kg
2.7 kg lighter
Open-circuit voltage
43.36 V
38.53 V
4.83 V apart
Module area
2.166 m²
1.953 m²
0.213 m² apart
Power density
230.8 Wp/m²
225.3 Wp/m²
5.5 Wp/m² higher
Cell count
120
108
12 cells apart
Voltage at max power
35.94 V
32.09 V
3.85 V apart
Bifacial
Yes
No
Yes vs No
Dimensions
1910x1134x35 mm
1722x1134x30 mm
1910x1134x35 mm vs 1722x1134x30 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 (-0.300 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
SPDG500-N120M10
16,776 kWh
SPDG440-N108M10
14,763 kWh
Lifetime gap
2,013 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
SPDG500-N120M10
SPDG440-N108M10
Standard test conditions
25 °C
100.0% of rated power
500 W
440 W
Cool, bright day
40 °C
95.5% of rated power
478 W
420 W
Typical summer roof
55 °C
91.0% of rated power
455 W
400 W
Hot roof
70 °C
86.5% of rated power
433 W
381 W
03
Full specification
Parameter
SPDG500-N120M10
SPDG440-N108M10
Difference
Power and efficiency
Rated power
500 Wp
440 Wp
+60 W for SPDG500-N120M10
Module efficiency
23.08 %
22.53 %
+0.55 pp for SPDG500-N120M10
Power density
230.8 Wp/m²
225.3 Wp/m²
+5.5 Wp/m² for SPDG500-N120M10
Open-circuit voltage
43.36 V
38.53 V
4.83 V apart
Voltage at max power
35.94 V
32.09 V
3.85 V apart
Short-circuit current
14.65 A
14.43 A
Effectively the same
Current at max power
13.92 A
13.72 A
Effectively the same
Temperature
Temperature coefficient
-0.300 %/°C
-0.300 %/°C
Same
Mechanical
Dimensions
1910x1134x35 mm
1722x1134x30 mm
1910x1134x35 mm vs 1722x1134x30 mm
Module area
2.166 m²
1.953 m²
0.213 m² apart
Weight
26.0 kg
23.3 kg
-2.7 kg for SPDG440-N108M10
Weight per kWp
52.0 kg/kWp
53.0 kg/kWp
Effectively the same
Warranty and degradation
Product warranty
25 yrs
25 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
120
108
12 cells apart
Bifacial
Yes
No
Yes vs No
04
14,129 panels
Against the whole database
Efficiency
#1,727
vs
#4,041
SPDG500-N120M10 leads by 2,314 places
Power density
#1,694
vs
#4,158
SPDG500-N120M10 leads by 2,464 places
Heat behaviour
#6,152
vs
#6,152
Tied - the same position in the database
Weight
#5,449
vs
#6,737
SPDG500-N120M10 leads by 1,288 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#3,908
vs
#6,586
SPDG500-N120M10 leads by 2,678 places
05
Open the full database
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06
Written summary
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07
Questions about this pairing
Which panel is better: Sunpro Power SPDG500-N120M10 or Sunpro Power SPDG440-N108M10?
According to our database: Sunpro Power SPDG500-N120M10 has higher module efficiency (23.08% vs 22.53%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Sunpro Power SPDG500-N120M10 and Sunpro Power SPDG440-N108M10?
Sunpro Power SPDG500-N120M10 has a module efficiency of 23.08%, while Sunpro Power SPDG440-N108M10 is 22.53%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Sunpro Power SPDG500-N120M10 use vs Sunpro Power SPDG440-N108M10?
Sunpro Power SPDG500-N120M10 uses TOPCon cells; Sunpro Power SPDG440-N108M10 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 Sunpro Power SPDG500-N120M10 and Sunpro Power SPDG440-N108M10?
Sunpro Power SPDG500-N120M10 has a 30 years power warranty; Sunpro Power SPDG440-N108M10 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 Sunpro Power SPDG500-N120M10 and Sunpro Power SPDG440-N108M10 bifacial panels?
Sunpro Power SPDG500-N120M10 is bifacial (captures light from both faces); Sunpro Power SPDG440-N108M10 is monofacial. Bifacial panels work best on ground mounts or raised structures with a light-coloured surface underneath.
Shop prices: See 12 Sunpro Power 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.