Inverter Air Conditioner Video from Current Force Electrics

Inverter units are able to control how fast or slow the compressor needs to run depending on the temperature at the time, which means they only use more power when needed.

So when it reaches say 22 degrees the compressor will only run at the speed required to keep the temperature at 22 degrees. So in practice this means that when you turn the air conditioner on the compressor will run faster to get to 22 and then slow right down to just maintain 22. Non inverter units just have one speed, which means the unit is constantly stopping and starting every time it hits 22 degrees. Which in turns means the temperature is rising and falling constantly too.