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SPF 3500 ES Lite vs ISolar SMK 5K 7 of 13 identical Swap Change inverters

Growatt SPF 3500 ES Lite vs Easun Power ISolar SMK 5K

Growatt SPF 3500 ES Lite
Growatt
SPF 3500 ES Lite
5 kW Off-grid
Open inverter page Datasheet PDF
VS
Easun Power
ISolar SMK 5K
5 kW Off-grid
Open inverter page Datasheet PDF
The verdict

SPF 3500 ES Lite leads on the differences that matter

The largest is max dc voltage: 355 V apart. 7 of 13 comparable parameters are identical, with 19 more left out because at least one datasheet does not publish them.

See all 6 differences
How alike are they
7 of 13 comparable
parameters are identical
identical differs not published
01

What actually differs

6 of 13 parameters
Parameter SPF 3500 ES Lite ISolar SMK 5K Difference
Max DC voltage 500 V 145 V 355 V apart
Max PV power 4.50 kW 4.00 kW 0.50 kW apart
Weight 9.2 kg 13.5 kg 4.3 kg lighter
Weight per kW 1.8 kg/kW 2.7 kg/kW 0.9 kg/kW lighter
DC/AC ratio 0.90 0.80 0.10 more oversizing headroom
Dimensions 135x330x485 mm 525x303x140 mm 135x330x485 mm vs 525x303x140 mm
02

Full specification

Parameter SPF 3500 ES Lite ISolar SMK 5K Difference
AC output
Rated AC power 5.00 kW 5.00 kW Same
Max AC power 5.00 kW 5.00 kW Same
Grid connection Single-phase Single-phase Same
Nominal AC voltage 230 V 230 V Same
Max AC current - - Neither datasheet publishes this
PV input
Max PV power 4.50 kW 4.00 kW 0.50 kW apart
DC/AC ratio 0.90 0.80 +0.10 for SPF 3500 ES Lite
Max DC voltage 500 V 145 V 355 V apart
MPPT voltage range 120-450 V - Not published by Easun Power
Start voltage - - Neither datasheet publishes this
MPP trackers 1 - Not published by Easun Power
Strings per tracker 1 - Not published by Easun Power
Max input current per tracker 22.0 A - Not published by Easun Power
Efficiency
European efficiency - - Neither datasheet publishes this
Max efficiency 93.0 % 93.0 % Same
CEC efficiency - - Neither datasheet publishes this
Battery
Battery input Yes Yes Same
Battery voltage 48 VDC - Not published by Easun Power
Max charge current - - Neither datasheet publishes this
Backup power - - Neither datasheet publishes this
Physical
Weight 9.2 kg 13.5 kg -4.3 kg for SPF 3500 ES Lite
Weight per kW 1.8 kg/kW 2.7 kg/kW -0.9 kg/kW for SPF 3500 ES Lite
Dimensions 135x330x485 mm 525x303x140 mm 135x330x485 mm vs 525x303x140 mm
Ingress protection IP20 - Not published by Easun Power
Cooling - - Neither datasheet publishes this
Noise - - Neither datasheet publishes this
Max operating temperature 55 °C 55 °C Same
Connectivity and safety
Wi-Fi Yes - Not published by Easun Power
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

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04

Written summary

Every figure here is from the manufacturers' own datasheets - a dash means the value is not published, never an estimate.