---
title: "Easun Power ISolar SMR II 3KW vs Growatt SPF 3000 ES - Inverter Comparison | ComparePV"
description: "Compare Easun Power ISolar SMR II 3KW vs Growatt SPF 3000 ES side by side: what actually differs, efficiency, MPP trackers, battery input and the full specification."
source: "https://comparepv.com/compare-inverters/easun-power-isolar-smr-ii-3kw/growatt-spf-3000-es"
updated: 2026-01-19
---

# Easun Power ISolar SMR II 3KW vs Growatt SPF 3000 ES

ISolar SMR II 3KW leads on the differences that matter

The largest is max dc voltage: 50 V apart. 7 of 13 comparable parameters are identical, with 19 more left out because at least one datasheet does not publish them.


## The two inverters


| Attribute | A | B |
| --- | --- | --- |
| Inverter | [Easun Power ISolar SMR II 3KW](https://comparepv.com/inverter/easun-power-isolar-smr-ii-3kw) | [Growatt SPF 3000 ES](https://comparepv.com/inverter/growatt-spf-3000-es) |
| Manufacturer | Easun Power | Growatt |
| Rated AC power | 3 kW | 3 kW |
| Type | Off-grid | Off-grid |


## Where they differ

Ranked by how much the difference matters, not by datasheet order.


| Parameter | ISolar SMR II 3KW | SPF 3000 ES | Difference |
| --- | --- | --- | --- |
| Max DC voltage | 500 V | 450 V | 50 V apart |
| Max PV power | 5.50 kW | 4.00 kW | 1.50 kW apart |
| DC/AC ratio | 1.83 | 1.33 | +0.50 for ISolar SMR II 3KW |
| Max operating temperature | 50 °C | 55 °C | +5 °C for SPF 3000 ES |
| MPPT voltage range | 120-450 V | 120-430 V | 120-450 V vs 120-430 V |
| Dimensions | 550x420x225 mm | 485x330x135 mm | 550x420x225 mm vs 485x330x135 mm |


## Every compared parameter


| Parameter | ISolar SMR II 3KW | SPF 3000 ES |
| --- | --- | --- |
| Rated AC power | 3.00 kW | 3.00 kW |
| Max AC power | 3.00 kW | 3.00 kW |
| Grid connection | Single-phase | Single-phase |
| Nominal AC voltage | 230 V | 230 V |
| Max AC current | - | - |
| Max PV power | 5.50 kW | 4.00 kW |
| DC/AC ratio | 1.83 | 1.33 |
| Max DC voltage | 500 V | 450 V |
| MPPT voltage range | 120-450 V | 120-430 V |
| Start voltage | - | - |
| MPP trackers | - | 1 |
| Strings per tracker | - | 1 |
| Max input current per tracker | - | - |
| European efficiency | - | - |
| Max efficiency | - | 93.0 % |
| CEC efficiency | - | - |
| Battery input | Yes | Yes |
| Battery voltage | - | 48VDC |
| Max charge current | - | - |
| Backup power | - | - |
| Weight | 11.3 kg | 11.5 kg |
| Weight per kW | 3.8 kg/kW | 3.8 kg/kW |
| Dimensions | 550x420x225 mm | 485x330x135 mm |
| Ingress protection | - | IP20 |
| Cooling | - | - |
| Noise | - | - |
| Max operating temperature | 50 °C | 55 °C |
| Wi-Fi | - | - |
| Ethernet | - | - |
| Arc fault protection | - | - |
| Integrated DC switch | - | - |
| Warranty | - | - |


## Related comparisons

- [Easun Power ISolar SMR II 3KW vs Growatt SPF 3000TL HVM-24](https://comparepv.com/compare-inverters/easun-power-isolar-smr-ii-3kw/growatt-spf-3000tl-hvm-24) - 8 differences, the largest is max dc voltage
- [Easun Power ISolar SMR II 3KW vs Growatt SPF 3000TL HVM-48](https://comparepv.com/compare-inverters/easun-power-isolar-smr-ii-3kw/growatt-spf-3000tl-hvm-48) - 8 differences, the largest is max dc voltage
- [Easun Power ISolar SMR II 3KW vs Growatt SPF 3000TL LVM-ES](https://comparepv.com/compare-inverters/easun-power-isolar-smr-ii-3kw/growatt-spf-3000tl-lvm-es) - 8 differences, the largest is max dc voltage
- [Growatt SPF 3000 ES vs Growatt SPF 3000TL LVM-24P](https://comparepv.com/compare-inverters/growatt-spf-3000-es/growatt-spf-3000tl-lvm-24p) - 9 differences, the largest is max dc voltage


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Source: https://comparepv.com/compare-inverters/easun-power-isolar-smr-ii-3kw/growatt-spf-3000-es

Not in this file, on the page: a written summary generated on request.