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SPDG490-N120M10 vs SPDG485-N120M10 18 of 19 identical Swap Change panels

Sunpro Power SPDG490-N120M10 vs Sunpro Power SPDG485-N120M10

Sunpro Power SPDG490-N120M10
Sunpro Power
SPDG490-N120M10
490 Wp 22.62 % TOPCon
Open panel page Datasheet PDF
VS
Sunpro Power SPDG485-N120M10
Sunpro Power
SPDG485-N120M10
485 Wp 22.39 % TOPCon
Open panel page Datasheet PDF
The verdict

SPDG490-N120M10 leads on the differences that matter

The largest is module efficiency: 0.23 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 SPDG490-N120M10 SPDG485-N120M10 Difference
Module efficiency 22.62 % 22.39 % 0.23 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 (-0.300 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
SPDG490-N120M10
16,440 kWh
SPDG485-N120M10
16,273 kWh
Lifetime gap
167 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario SPDG490-N120M10 SPDG485-N120M10
Standard test conditions 25 °C 100.0% of rated power 490 W 485 W
Cool, bright day 40 °C 95.5% of rated power 468 W 463 W
Typical summer roof 55 °C 91.0% of rated power 446 W 441 W
Hot roof 70 °C 86.5% of rated power 424 W 420 W
03

Full specification

Parameter SPDG490-N120M10 SPDG485-N120M10 Difference
Power and efficiency
Rated power 490 Wp 485 Wp Effectively the same
Module efficiency 22.62 % 22.39 % +0.23 pp for SPDG490-N120M10
Power density 226.2 Wp/m² 223.9 Wp/m² Effectively the same
Open-circuit voltage 43.06 V 42.94 V Effectively the same
Voltage at max power 35.66 V 35.52 V Effectively the same
Short-circuit current 14.47 A 14.38 A Effectively the same
Current at max power 13.75 A 13.66 A Effectively the same
Temperature
Temperature coefficient -0.300 %/°C -0.300 %/°C Same
Mechanical
Dimensions 1910x1134x35 mm 1910x1134x35 mm Same
Module area 2.166 m² 2.166 m² Same
Weight 26.0 kg 26.0 kg Same
Weight per kWp 53.1 kg/kWp 53.6 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 120 120 Same
Bifacial No No Same
04

Against the whole database

14,129 panels
Efficiency
#3,693 vs #5,020
SPDG490-N120M10 leads by 1,327 places
Power density
#3,731 vs #4,920
SPDG490-N120M10 leads by 1,189 places
Heat behaviour
#6,152 vs #6,152
Tied - the same position in the database
Weight
#6,877 vs #7,689
SPDG490-N120M10 leads by 812 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#4,780 vs #5,230
SPDG490-N120M10 leads by 450 places
05

More useful comparisons

Open the full database
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06

Written summary

07

Questions about this pairing

Which panel is better: Sunpro Power SPDG490-N120M10 or Sunpro Power SPDG485-N120M10?
According to our database: Sunpro Power SPDG490-N120M10 has higher module efficiency (22.62% vs 22.39%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Sunpro Power SPDG490-N120M10 and Sunpro Power SPDG485-N120M10?
Sunpro Power SPDG490-N120M10 has a module efficiency of 22.62%, while Sunpro Power SPDG485-N120M10 is 22.39%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Sunpro Power SPDG490-N120M10 use vs Sunpro Power SPDG485-N120M10?
Sunpro Power SPDG490-N120M10 uses TOPCon cells; Sunpro Power SPDG485-N120M10 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 SPDG490-N120M10 and Sunpro Power SPDG485-N120M10?
Sunpro Power SPDG490-N120M10 has a 30 years power warranty; Sunpro Power SPDG485-N120M10 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 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.