Description
The Must 5kW hybrid inverter brings quality hybrid solar functionality to value-conscious South African buyers without compromising on the features that matter most during loadshedding. Operating on a 48V battery bus, it accepts up to 5kW of solar panel input across dual MPPT trackers and delivers 5kW of clean pure sine wave AC output to household loads.
The sub-20ms automatic transfer time during Eskom outages means computers, smart TVs, and medical equipment continue operating without rebooting — the switch is imperceptible to most devices. The Must inverter supports both grid-tie operation (self-consumption mode, selling excess solar to the grid where metering agreements exist) and full off-grid island mode.
Must’s monitoring portal provides basic daily generation and consumption data via Wi-Fi, allowing homeowners to track solar yield and battery state remotely. The battery communication protocol supports popular LiFePO4 brands on the South African market including Dyness, Hubble, Revov, and Freedom Won via CAN or RS485 — check compatibility with your chosen battery before purchase.
For a 4–5 room home in a Stage 4 loadshedding area running fridges, lights, Wi-Fi, security cameras, and a home office, the Must 5kW represents one of the most cost-effective entry points into hybrid solar backup.

Kobus Grobler –
Does the job well
Good value inverter. It feels reliable and is a practical choice for backup power. Good buy, nothing serious to complain about.
Pieter van der Merwe (verified owner) –
Great for load shedding
The Must inverter has been working well for load shedding. Changeover is smooth and the house basics stay on without drama.
Melanie Samuels –
Inverter works nicely
The Must inverter has been working well for load shedding. Changeover is smooth and the house basics stay on without drama.
Monique de Villiers (verified owner) –
Works well at home
Solid inverter for South African homes. It keeps the important things running when the grid drops.
Nandi Mthethwa (verified owner) –
Works well at home
Works nicely with the solar setup. The power is stable and I have not had issues so far.
Memory Moyo –
Good unit for the price
I am happy with this inverter. It does the job and makes load shedding much easier to deal with. Delivery could always be faster, but the product itself is good.
Elri du Plessis (verified owner) –
Good inverter overall
Good value inverter. It feels reliable and is a practical choice for backup power. Only giving four stars because I still want to see how it performs long term.
Kedibone Mothiba (verified owner) –
Inverter works nicely
Solid inverter for South African homes. It keeps the important things running when the grid drops.
Mariska Botha (verified owner) –
Very happy with this inverter
Good inverter for backup power. It handles normal home use nicely and the setup feels reliable.
Ayanda Zwane (verified owner) –
Great for load shedding
Good inverter for backup power. It handles normal home use nicely and the setup feels reliable.
Tumelo Mokwena –
Does the job
I am happy with this inverter. It does the job and makes load shedding much easier to deal with. It does the job, but check that it suits your setup first.
Gerhard Fourie –
Solid backup power
Works nicely with the solar setup. The power is stable and I have not had issues so far.