Format date concatenate

Hi, everyone

I have included a measure in my data model that shows last date refresh have been made.

I would like to show in the report something like: 'Last refresh: dd/mm/aaaa hh_mm:ss.'.

I have tried to do that creating a measure:  'Last_Refresh_Concat = CONCATENATE("Last Refresh: ";[Last_Refresh_NoConcat])'

I have created another measure to test: 'Last_Refresh_NoConcat = MAX('Sales'[Last refresh column])' 

As you can see below, I can format date with no_concat measure, but I don't know how can I do it with concat_measure.

Any suggestion??

Thanks,