---
title: "Solis-3P12K-4G vs Sungrow SG12RT-20 - Inverter Comparison | ComparePV"
description: "Compare Solis-3P12K-4G vs Sungrow SG12RT-20 side by side: what actually differs, efficiency, MPP trackers, battery input and the full specification."
source: "https://comparepv.com/compare-inverters/ginlong-solis-solis-3p12k-4g/sungrow-sg12rt-20"
updated: 2026-01-17
---

# Solis-3P12K-4G vs Sungrow SG12RT-20

SG12RT-20 leads on the differences that matter

The largest is max dc voltage: 100 V apart. 9 of 17 comparable parameters are identical, with 15 more left out because at least one datasheet does not publish them.


## The two inverters


| Attribute | A | B |
| --- | --- | --- |
| Inverter | [Solis-3P12K-4G](https://comparepv.com/inverter/ginlong-solis-solis-3p12k-4g) | [Sungrow SG12RT-20](https://comparepv.com/inverter/sungrow-sg12rt-20) |
| Manufacturer | Ginlong Solis | Sungrow |
| Rated AC power | 12 kW | 12 kW |
| Type | Grid-tie | Grid-tie |


## Where they differ

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


| Parameter | Solis-3P12K-4G | SG12RT-20 | Difference |
| --- | --- | --- | --- |
| Max DC voltage | 1000 V | 1100 V | 100 V apart |
| Max AC power | 13.20 kW | 12.00 kW | 1.20 kW apart |
| Weight | 18.9 kg | 17.0 kg | -1.9 kg for SG12RT-20 |
| European efficiency | 97.8 % | 98.1 % | +0.3 pp for SG12RT-20 |
| Max efficiency | 98.3 % | 98.5 % | +0.2 pp for SG12RT-20 |
| MPPT voltage range | 160-850 V | 160-1000 V | 160-850 V vs 160-1000 V |
| Max AC current | 19.1 A | 20.0 A | 0.9 A apart |
| Dimensions | 563x310x219 mm | 480x370x195 mm | 563x310x219 mm vs 480x370x195 mm |


## Every compared parameter


| Parameter | Solis-3P12K-4G | SG12RT-20 |
| --- | --- | --- |
| Rated AC power | 12.00 kW | 12.00 kW |
| Max AC power | 13.20 kW | 12.00 kW |
| Grid connection | 3-phase | 3-phase |
| Nominal AC voltage | 400 V | 400 V |
| Max AC current | 19.1 A | 20.0 A |
| Max PV power | 14.50 kW | - |
| DC/AC ratio | 1.21 | - |
| Max DC voltage | 1000 V | 1100 V |
| MPPT voltage range | 160-850 V | 160-1000 V |
| Start voltage | 180 V | 180 V |
| MPP trackers | 2 | 2 |
| Strings per tracker | - | 1 |
| Max input current per tracker | - | 25.0 A |
| European efficiency | 97.8 % | 98.1 % |
| Max efficiency | 98.3 % | 98.5 % |
| CEC efficiency | - | - |
| Battery input | - | - |
| Battery voltage | - | - |
| Max charge current | - | - |
| Backup power | - | - |
| Weight | 18.9 kg | 17.0 kg |
| Weight per kW | 1.6 kg/kW | 1.4 kg/kW |
| Dimensions | 563x310x219 mm | 480x370x195 mm |
| Ingress protection | IP65 | IP65 |
| Cooling | - | forced-air |
| Noise | - | - |
| Max operating temperature | 60 °C | 60 °C |
| Wi-Fi | Yes | - |
| Ethernet | - | - |
| Arc fault protection | Yes | - |
| Integrated DC switch | Yes | Yes |
| Warranty | - | - |


## Related comparisons

- [Solis-3P12K-4G vs Growatt MOD 12KTL3-X](https://comparepv.com/compare-inverters/ginlong-solis-solis-3p12k-4g/growatt-mod-12ktl3-x) - 13 differences, the largest is max dc voltage
- [Solis-3P12K-4G vs Growatt MOD 12KTL3-X2(Pro)](https://comparepv.com/compare-inverters/ginlong-solis-solis-3p12k-4g/growatt-mod-12ktl3-x2-pro) - 13 differences, the largest is max dc voltage
- [Solis-3P12K-4G vs Sungrow SG12KTL-M](https://comparepv.com/compare-inverters/ginlong-solis-solis-3p12k-4g/sungrow-sg12ktl-m) - 9 differences, the largest is max dc voltage
- [Sungrow SG12RT-20 vs GoodWe GW12KLN-DT](https://comparepv.com/compare-inverters/sungrow-sg12rt-20/goodwe-gw12kln-dt) - 6 differences, the largest is max dc voltage


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Source: https://comparepv.com/compare-inverters/ginlong-solis-solis-3p12k-4g/sungrow-sg12rt-20

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