The table below summarises the plug types, voltage and frequency of electrical current in both Belgium and Ethiopia.
|Plug Types||E||D, J, L|
|Frequency of electrical current||50Hz||50Hz|
Belgium uses Plug Type E.
In Ethiopia there's more than one socket type in use. You may require more than one adaptor.
The voltages found in Belgium (230V) and Ethiopia (220V) are not exactly the same, but the difference is tolerable, so you should not need a transformer.
The frequency found in Belgium and Ethiopia is exactly the same (50Hz). Timing devices and appliances that use motors will function as expected under this frequency.