---
title: "Deye SUN-7.5K-G vs SOFAR 7.7KTLM-G3 - Inverter Comparison | ComparePV"
description: "Compare Deye SUN-7.5K-G vs SOFAR 7.7KTLM-G3 side by side: what actually differs, efficiency, MPP trackers, battery input and the full specification."
source: "https://comparepv.com/compare-inverters/deye-sun-7-5k-g/sofar-solar-sofar-7-7ktlm-g3"
updated: 2026-01-17
---

# Deye SUN-7.5K-G vs SOFAR 7.7KTLM-G3

SUN-7.5K-G leads on the differences that matter

The largest is rated ac power: 0.20 kW apart. 6 of 19 comparable parameters are identical, with 13 more left out because at least one datasheet does not publish them.


## The two inverters


| Attribute | A | B |
| --- | --- | --- |
| Inverter | [Deye SUN-7.5K-G](https://comparepv.com/inverter/deye-sun-7-5k-g) | [SOFAR 7.7KTLM-G3](https://comparepv.com/inverter/sofar-solar-sofar-7-7ktlm-g3) |
| Manufacturer | Deye | Sofar Solar |
| Rated AC power | 7.5 kW | 7.7 kW |
| Type | Grid-tie | Grid-tie |


## Where they differ

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


| Parameter | SUN-7.5K-G | SOFAR 7.7KTLM-G3 | Difference |
| --- | --- | --- | --- |
| Rated AC power | 7.50 kW | 7.70 kW | 0.20 kW apart |
| Max DC voltage | 550 V | 600 V | 50 V apart |
| Max AC power | 8.30 kW | 7.70 kW | 0.60 kW apart |
| Weight | 11.0 kg | 17.5 kg | -6.5 kg for SUN-7.5K-G |
| Weight per kW | 1.5 kg/kW | 2.3 kg/kW | -0.8 kg/kW for SUN-7.5K-G |
| Max efficiency | 97.7 % | 98.1 % | +0.4 pp for SOFAR 7.7KTLM-G3 |
| European efficiency | 97.5 % | 97.3 % | +0.2 pp for SUN-7.5K-G |
| MPP trackers | 2 | 3 | +1 trackers for SOFAR 7.7KTLM-G3 |
| Max operating temperature | 65 °C | 60 °C | +5 °C for SUN-7.5K-G |
| Start voltage | 120 V | 90 V | -30 V for SOFAR 7.7KTLM-G3 |
| MPPT voltage range | 70-550 V | 80-550 V | 70-550 V vs 80-550 V |
| Max AC current | 35.9 A | 35.0 A | 0.9 A apart |
| Dimensions | 310x330x198 mm | 380x468x187 mm | 310x330x198 mm vs 380x468x187 mm |


## Every compared parameter


| Parameter | SUN-7.5K-G | SOFAR 7.7KTLM-G3 |
| --- | --- | --- |
| Rated AC power | 7.50 kW | 7.70 kW |
| Max AC power | 8.30 kW | 7.70 kW |
| Grid connection | Single-phase | Single-phase |
| Nominal AC voltage | 230 V | 230 V |
| Max AC current | 35.9 A | 35.0 A |
| Max PV power | 9.80 kW | - |
| DC/AC ratio | 1.31 | - |
| Max DC voltage | 550 V | 600 V |
| MPPT voltage range | 70-550 V | 80-550 V |
| Start voltage | 120 V | 90 V |
| MPP trackers | 2 | 3 |
| Strings per tracker | - | 1 |
| Max input current per tracker | - | 20.0 A |
| European efficiency | 97.5 % | 97.3 % |
| Max efficiency | 97.7 % | 98.1 % |
| CEC efficiency | - | - |
| Battery input | - | - |
| Battery voltage | - | - |
| Max charge current | - | - |
| Backup power | - | - |
| Weight | 11.0 kg | 17.5 kg |
| Weight per kW | 1.5 kg/kW | 2.3 kg/kW |
| Dimensions | 310x330x198 mm | 380x468x187 mm |
| Ingress protection | IP65 | IP65 |
| Cooling | natural | natural |
| Noise | 25 dB | - |
| Max operating temperature | 65 °C | 60 °C |
| Wi-Fi | Yes | Yes |
| Ethernet | Yes | - |
| Arc fault protection | - | - |
| Integrated DC switch | Yes | Yes |
| Warranty | - | - |


## Related comparisons

- [Deye SUN-7.5K-G vs Fronius Primo 7.6-1](https://comparepv.com/compare-inverters/deye-sun-7-5k-g/fronius-international-fronius-primo-7-6-1) - 14 differences, the largest is max dc voltage
- [Deye SUN-7.5K-G vs SolarEdge SE12.5K (Delta grid version; part no. SExxK-xxxxxbxx4)](https://comparepv.com/compare-inverters/deye-sun-7-5k-g/solaredge-se12-5k-delta-grid-version-part-no-sexxk-xxxxxbxx4) - 14 differences, the largest is rated ac power
- [Deye SUN-7.5K-G vs Growatt MOD 7000TL3-X](https://comparepv.com/compare-inverters/deye-sun-7-5k-g/growatt-mod-7000tl3-x) - 17 differences, the largest is rated ac power
- [SOFAR 7.7KTLM-G3 vs Growatt MOD 8000TL3-X](https://comparepv.com/compare-inverters/sofar-solar-sofar-7-7ktlm-g3/growatt-mod-8000tl3-x) - 16 differences, the largest is rated ac power
- [SOFAR 7.7KTLM-G3 vs Growatt MOD 8KTL3-X2(Pro)](https://comparepv.com/compare-inverters/sofar-solar-sofar-7-7ktlm-g3/growatt-mod-8ktl3-x2-pro) - 15 differences, the largest is rated ac power


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Source: https://comparepv.com/compare-inverters/deye-sun-7-5k-g/sofar-solar-sofar-7-7ktlm-g3

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