Solved: Translate custom fields label

-- HikaShop version -- : 3.0

Hi

I've created a custom field label "Nominel effekt (W)" - column name "nomineleffektw" - how can I translate this without using e.g. falang?
I've tried language overrides like CUSTOM_FIELD_NOMINELEFFEKTW but can't get it to work.

EDIT: Also tried adding the field name to the hikashop language file, both:

NOMINELEFFEKTW = "123abc"
nomineleffektw = "ksksks"

Had no effect on the field label...

EDIT: Solved - thought language overrides should be based on column name, not label title

Thanks