Growatt SPF 3500 ES vs Easun Power ISolar-SMX-II-3.6KW
VS
The verdict
11 differences, and they point both ways
The largest is max dc voltage: 50 V apart. 5 of 16 comparable parameters are identical, with 16 more left out because at least one datasheet does not publish them.
See all 11 differencesHow alike are they
5
of 16 comparable
parameters are identical
parameters are identical
identical
differs
not published
01
11 of 16 parameters
What actually differs
Parameter
SPF 3500 ES
ISolar-SMX-II-3.6KW
Difference
Max DC voltage
450 V
500 V
50 V apart
Max efficiency
93.0 %
92.0 %
1.0 pp more efficient
Rated AC power
3.50 kW
3.60 kW
0.10 kW apart
Max PV power
4.50 kW
4.00 kW
0.50 kW apart
Weight
11.5 kg
6.9 kg
4.6 kg lighter
Weight per kW
3.3 kg/kW
1.9 kg/kW
1.4 kg/kW lighter
DC/AC ratio
1.29
1.11
0.18 more oversizing headroom
Max AC power
3.50 kW
3.60 kW
0.10 kW apart
MPPT voltage range
120-430 V
120-450 V
120-430 V vs 120-450 V
Battery voltage
48VDC
20-33 Vdc (rated 24 Vdc; minimum starting voltage 22 V)
48VDC vs 20-33 Vdc (rated 24 Vdc; minimum starting voltage 22 V)
Dimensions
485x330x135 mm
378x280x103 mm
485x330x135 mm vs 378x280x103 mm
02
Full specification
Parameter
SPF 3500 ES
ISolar-SMX-II-3.6KW
Difference
AC output
Rated AC power
3.50 kW
3.60 kW
0.10 kW apart
Max AC power
3.50 kW
3.60 kW
0.10 kW apart
Grid connection
Single-phase
Single-phase
Same
Nominal AC voltage
230 V
230 V
Same
Max AC current
-
15.6 A
Not published by Growatt
PV input
Max PV power
4.50 kW
4.00 kW
0.50 kW apart
DC/AC ratio
1.29
1.11
+0.18 for SPF 3500 ES
Max DC voltage
450 V
500 V
50 V apart
MPPT voltage range
120-430 V
120-450 V
120-430 V vs 120-450 V
Start voltage
-
120 V
Not published by Growatt
MPP trackers
1
1
Same
Strings per tracker
1
-
Not published by Easun Power
Max input current per tracker
-
13.0 A
Not published by Growatt
Efficiency
European efficiency
-
-
Neither datasheet publishes this
Max efficiency
93.0 %
92.0 %
+1.0 pp for SPF 3500 ES
CEC efficiency
-
-
Neither datasheet publishes this
Battery
Battery input
Yes
Yes
Same
Battery voltage
48VDC
20-33 Vdc (rated 24 Vdc; minimum starting voltage 22 V)
48VDC vs 20-33 Vdc (rated 24 Vdc; minimum starting voltage 22 V)
Max charge current
-
80 A
Not published by Growatt
Backup power
-
3.6 kW
Not published by Growatt
Physical
Weight
11.5 kg
6.9 kg
-4.6 kg for ISolar-SMX-II-3.6KW
Weight per kW
3.3 kg/kW
1.9 kg/kW
-1.4 kg/kW for ISolar-SMX-II-3.6KW
Dimensions
485x330x135 mm
378x280x103 mm
485x330x135 mm vs 378x280x103 mm
Ingress protection
IP20
-
Not published by Easun Power
Cooling
-
forced-air
Not published by Growatt
Noise
-
60 dB
Not published by Growatt
Max operating temperature
55 °C
55 °C
Same
Connectivity and safety
Wi-Fi
-
-
Neither datasheet publishes this
Ethernet
-
-
Neither datasheet publishes this
Arc fault protection
-
-
Neither datasheet publishes this
Integrated DC switch
-
-
Neither datasheet publishes this
Warranty
Warranty
-
-
Neither datasheet publishes this
03
Open all inverters
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04
Written summary
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Every figure here is from the manufacturers' own datasheets - a dash means the value is not published, never an estimate.