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490W vs 470W 15 of 19 identical Swap Change panels

Sun Earth DXM8-60HBG 490W vs Sun Earth DXM8-60HBG 470W

Sun Earth
DXM8-60HBG 490W
490 Wp 22.60 % TOPCon Bifacial
Open panel page Datasheet PDF
VS
Sun Earth
DXM8-60HBG 470W
470 Wp 21.70 % TOPCon Bifacial
Open panel page Datasheet PDF
The verdict

490W leads on the differences that matter

The largest is module efficiency: 0.90 pp more efficient. 15 of 19 comparable parameters are identical.

See all 4 differences
How alike are they
15 of 19 comparable
parameters are identical
identical differs
01

What actually differs

4 of 19 parameters
Parameter 490W 470W Difference
Module efficiency 22.60 % 21.70 % 0.90 pp more efficient
Power density 226.5 Wp/m² 217.2 Wp/m² 9.2 Wp/m² higher
Rated power 490 Wp 470 Wp 20 W more power
Weight per kWp 54.1 kg/kWp 56.4 kg/kWp 2.3 kg/kWp lighter
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 (-0.290 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
490W
16,440 kWh
470W
15,769 kWh
Lifetime gap
671 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario 490W 470W
Standard test conditions 25 °C 100.0% of rated power 490 W 470 W
Cool, bright day 40 °C 95.7% of rated power 469 W 450 W
Typical summer roof 55 °C 91.3% of rated power 447 W 429 W
Hot roof 70 °C 87.0% of rated power 426 W 409 W
03

Full specification

Parameter 490W 470W Difference
Power and efficiency
Rated power 490 Wp 470 Wp +20 W for 490W
Module efficiency 22.60 % 21.70 % +0.90 pp for 490W
Power density 226.5 Wp/m² 217.2 Wp/m² +9.2 Wp/m² for 490W
Open-circuit voltage 43.00 V 42.20 V Effectively the same
Voltage at max power 35.60 V 35.20 V Effectively the same
Short-circuit current 14.49 A 14.17 A Effectively the same
Current at max power 13.76 A 13.35 A Effectively the same
Temperature
Temperature coefficient -0.290 %/°C -0.290 %/°C Same
Mechanical
Dimensions 1908x1134x30 mm 1908x1134x30 mm Same
Module area 2.164 m² 2.164 m² Same
Weight 26.5 kg 26.5 kg Same
Weight per kWp 54.1 kg/kWp 56.4 kg/kWp -2.3 kg/kWp for 490W
Warranty and degradation
Product warranty 12 yrs 12 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 Yes Yes Same
04

Against the whole database

14,005 panels
Efficiency
#3,658 vs #7,421
490W leads by 3,763 places
Power density
#3,494 vs #7,384
490W leads by 3,890 places
Heat behaviour
#2,165 vs #2,165
Tied - the same position in the database
Weight
#8,300 vs #10,619
490W leads by 2,319 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#7,521 vs #9,363
490W leads by 1,842 places
05

More useful comparisons

Open the full database
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Sun Earth DXM8-60HBG 490W vs Sun Earth DXM8-60HBG 505W
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Sun Earth DXM8-60HBG 490W vs Sun Earth DXM8-60HBG 500W
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Sun Earth DXM8-60HBG 490W vs Sun Earth DXM8-72HBG 610W
9 differences, the largest is module efficiency
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Sun Earth DXM8-60HBG 490W vs Sun Earth DXM8-72H-610
9 differences, the largest is module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: Sun Earth DXM8-60HBG 490W or Sun Earth DXM8-60HBG 470W?
According to our database: Sun Earth DXM8-60HBG 490 W has higher module efficiency (22.60% vs 21.70%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Sun Earth DXM8-60HBG 490W and Sun Earth DXM8-60HBG 470W?
Sun Earth DXM8-60HBG 490 W has a module efficiency of 22.60%, while Sun Earth DXM8-60HBG 470 W is 21.70%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Sun Earth DXM8-60HBG 490W use vs Sun Earth DXM8-60HBG 470W?
Sun Earth DXM8-60HBG 490 W uses TOPCon cells; Sun Earth DXM8-60HBG 470 W 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 Sun Earth DXM8-60HBG 490W and Sun Earth DXM8-60HBG 470W?
Sun Earth DXM8-60HBG 490 W has a 30 years power warranty; Sun Earth DXM8-60HBG 470 W 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 Sun Earth DXM8-60HBG 490W and Sun Earth DXM8-60HBG 470W bifacial panels?
Both Sun Earth DXM8-60HBG 490 W and Sun Earth DXM8-60HBG 470 W are bifacial - they capture reflected light from the ground, which can add 5-15% more annual energy on ground-mount or elevated rooftop installations with a light surface beneath.

Shop prices: See 13 Sun Earth 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.