Series 'consists of or 'consist of'

[edmondng]

Dear Sirs

I've seen many people using 'consists of' as well as 'consist of' after the word 'series' interchangeably. For example:

This product series consists of features such as ...

This product series consist of features such as ...

May I know which sentence is correct, or whether both can be used? In this case, can a product series be regarded as a single entity, referred to as one category of products?

Your advice is appreciated. Thank you.


Regards
Ed

[Anglika]

Series is the same in the singular or the plural. To differentiate you need "this" or "these".

This product series = consists of [singular - one series]

These product series = consist of [plural - more than one series]