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E490HCM132-B vs E485HCM132-B 18 of 19 identical Swap Change panels

Emmvee E490HCM132-B vs Emmvee E485HCM132-B

Emmvee
E490HCM132-B
490 Wp 20.61 % PERC
Open panel page Datasheet PDF
VS
Emmvee
E485HCM132-B
485 Wp 20.40 % PERC
Open panel page Datasheet PDF
The verdict

E490HCM132-B leads on the differences that matter

The largest is module efficiency: 0.21 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 E490HCM132-B E485HCM132-B Difference
Module efficiency 20.61 % 20.40 % 0.21 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 (-0.350 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
E490HCM132-B
15,880 kWh
E485HCM132-B
15,718 kWh
Lifetime gap
162 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario E490HCM132-B E485HCM132-B
Standard test conditions 25 °C 100.0% of rated power 490 W 485 W
Cool, bright day 40 °C 94.8% of rated power 464 W 460 W
Typical summer roof 55 °C 89.5% of rated power 439 W 434 W
Hot roof 70 °C 84.2% of rated power 413 W 409 W
03

Full specification

Parameter E490HCM132-B E485HCM132-B Difference
Power and efficiency
Rated power 490 Wp 485 Wp Effectively the same
Module efficiency 20.61 % 20.40 % +0.21 pp for E490HCM132-B
Power density 206.1 Wp/m² 204.0 Wp/m² Effectively the same
Open-circuit voltage 44.65 V 44.43 V Effectively the same
Voltage at max power 38.94 V 38.81 V Effectively the same
Short-circuit current 13.09 A 13.00 A Effectively the same
Current at max power 12.59 A 12.50 A Effectively the same
Temperature
Temperature coefficient -0.350 %/°C -0.350 %/°C Same
Mechanical
Dimensions 2097x1134x35 mm 2097x1134x35 mm Same
Module area 2.378 m² 2.378 m² Same
Weight 25.0 kg 25.0 kg Same
Weight per kWp 51.0 kg/kWp 51.5 kg/kWp Effectively the same
Warranty and degradation
Product warranty 12 yrs 12 yrs Same
Performance warranty 25 yrs 25 yrs Same
Annual degradation 0.55 %/yr 0.55 %/yr Same
Technology
Cell technology PERC PERC Same
Cell type Monocrystalline Monocrystalline Same
Cell count 132 132 Same
Bifacial No No Same
04

Against the whole database

14,129 panels
Efficiency
#11,161 vs #11,680
E490HCM132-B leads by 519 places
Power density
#11,177 vs #11,691
E490HCM132-B leads by 514 places
Heat behaviour
#10,489 vs #10,489
Tied - the same position in the database
Weight
#4,383 vs #4,959
E490HCM132-B leads by 576 places
Warranty
#9,912 vs #9,912
Tied - the same position in the database
Overall
#10,460 vs #10,728
E490HCM132-B leads by 268 places
05

More useful comparisons

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06

Written summary

07

Questions about this pairing

Which panel is better: Emmvee E490HCM132-B or Emmvee E485HCM132-B?
According to our database: Emmvee E490HCM132-B has higher module efficiency (20.61% vs 20.40%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Emmvee E490HCM132-B and Emmvee E485HCM132-B?
Emmvee E490HCM132-B has a module efficiency of 20.61%, while Emmvee E485HCM132-B is 20.40%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Emmvee E490HCM132-B use vs Emmvee E485HCM132-B?
Emmvee E490HCM132-B uses PERC cells; Emmvee E485HCM132-B uses PERC. 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 Emmvee E490HCM132-B and Emmvee E485HCM132-B?
Emmvee E490HCM132-B has a 25 years power warranty; Emmvee E485HCM132-B has a 25 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.

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.