Mean Well LED Driver noise

There are times when a transformer may produce an audible Noise like a Hum.
In one case from Mean Well, Led Driver HLG-320H-C2800B the customer stated a noise (hum) was coming from it.
According to the Manufacturer this can happen. It is referred to as magnetostriction, where oscillating AC currents produce a changing magnetic field which can create a hum.
This may be more noticeable depending on how the driver is being used.
In most cases there is not a problem with the Driver.
It is good practice to make sure there is proper airflow and the power usage is correct for optimal performance.