Many thanks for your reply. I agree, the lower powered one should do, but I suppose I was also curious which one TP-LINK packaged with the EAP245 too.

Hi, I've have recently been given an EAP245 V3 AP, which I will add to my network of EAP225 V3's. I was given this without an Injector and in my simplistic approach thought it would be easy as I had...